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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549
 
FORM 8-K
 
Current Report Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
 
February 14, 2024
Date of Report (Date of earliest event reported) 
Arch Capital Group Ltd.
(Exact name of registrant as specified in its charter)
Bermuda   001-16209   98-0374481
(State or other
jurisdiction of
incorporation or
organization)
  (Commission File Number)   (I.R.S. Employer
Identification No.)
 
Waterloo House, Ground Floor, 100 Pitts Bay Road, Pembroke HM 08, Bermuda
(Address of principal executive offices) (Zip Code)
 
Registrant’s telephone number, including area code:
(441) 278-9250
 
N/A
(Former name or former address, if changed since last report)
 
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
 
☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
 
☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
 
☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
 
☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))


Securities registered pursuant to Section 12(b) of the Exchange Act:
Title of each class Trading Symbol (s) Name of each exchange on which registered
Common shares, $0.0011 par value per share ACGL NASDAQ Stock Market
Depositary shares, each representing a 1/1,000th interest in a 5.45% Series F preferred share
ACGLO
NASDAQ Stock Market
Depositary shares, each representing a 1/1,000th interest in a 4.55% Series G preferred share ACGLN NASDAQ Stock Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

    Emerging growth company     ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o ITEM 2.02 Results of Operations and Financial Condition.



 
On February 14, 2024, Arch Capital Group Ltd. issued a press release reporting its earnings and the availability of its financial supplement for the quarter ended December 31, 2023. The press release and financial supplement are attached to this Current Report on Form 8-K as Exhibit 99.1 and Exhibit 99.2, respectively, and are incorporated herein by reference.
 
The information in this Current Report on Form 8-K, including the information set forth in Exhibit 99.1 and Exhibit 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

ITEM 9.01    Financial Statements and Exhibits.

(d):     The following exhibits are being filed herewith.
EXHIBIT NO.   DESCRIPTION
99.1  
99.2  
104 Cover Page Interactive Data File (embedded within the Inline XBRL document)
2


SIGNATURES
 
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
 
  ARCH CAPITAL GROUP LTD.
     
     
Date: February 14, 2024 By: /s/ François Morin
    Name: François Morin
    Title: Executive Vice President, Chief Financial Officer and Treasurer


3
EX-99.1 2 ex-991release123123.htm EX-99.1 Document

EXHIBIT 99.1
archlogorgbsolida38.jpg
PRESS RELEASE Arch Capital Group Ltd.
NASDAQ Symbol: ACGL Waterloo House, Ground Floor
For Immediate Release 100 Pitts Bay Road
February 14, 2024
Pembroke HM 08 Bermuda


ARCH CAPITAL GROUP LTD. REPORTS 2023 FOURTH QUARTER RESULTS

PEMBROKE, BERMUDA--(BUSINESS WIRE)--Arch Capital Group Ltd. (NASDAQ: ACGL; “Arch,” “our” or “the Company”) announces its 2023 fourth quarter results. The results included:
•Net income available to Arch common shareholders of $2.3 billion, or $6.12 per share, representing a 58.2% annualized net income return on average common equity, compared to net income available to Arch common shareholders of $849 million, or $2.26 per share, for the 2022 fourth quarter.
•Fourth quarter results were impacted by the establishment of a net deferred tax asset of $1.18 billion, or $3.10 per share, related to the enactment of Bermuda’s new corporate income tax.
•After-tax operating income available to Arch common shareholders(1) of $945 million, or $2.49 per share, representing a 23.7% annualized operating return on average common equity(1), compared to $806 million, or $2.14 per share, for the 2022 fourth quarter.
•Pre-tax current accident year catastrophic losses for the Company’s insurance and reinsurance segments, net of reinsurance and reinstatement premiums(1), of $137 million.
•Favorable development in prior year loss reserves, net of related adjustments(1), of $135 million.
•Combined ratio excluding catastrophic activity and prior year development(1) of 78.9%, compared to 82.0% for the 2022 fourth quarter.
•Book value per common share of $46.94 at December 31, 2023, a 21.5% increase from September 30, 2023.
Marc Grandisson, Chief Executive Officer of ACGL commented: “We finished 2023 on an excellent note, closing the books with a stellar 21.6% operating return on equity for the year and growing our book value per share by 43.9%. We are bullish about our prospects for 2024 as our underwriters continue to lean into the excellent conditions prevalent in most of the markets where we operate.”
All earnings per share amounts discussed in this release are on a diluted basis. The following table summarizes the Company’s underwriting results:
(U.S. Dollars in millions) Three Months Ended December 31,
2023 2022 % Change
Gross premiums written $ 4,251  $ 3,795  12.0 
Net premiums written 3,261  3,035  7.4 
Net premiums earned 3,344  2,761  21.1 
Underwriting income 715  734  (2.6)
Underwriting Ratios % Point Change
Loss ratio 49.0  % 45.0  % 4.0 
Underwriting expense ratio 29.9  % 28.5  % 1.4 
Combined ratio 78.9  % 73.5  % 5.4 
Combined ratio excluding catastrophic activity and prior year development (1)
78.9  % 82.0  % (3.1)
(1)    Presentation represents a “non-GAAP” financial measure as defined in Regulation G. See ‘Comments on Regulation G’ for further details.


1


The following table summarizes the Company’s consolidated financial data, including a reconciliation of net income or loss available to Arch common shareholders to after-tax operating income or loss available to Arch common shareholders and related diluted per share results (see ‘Comments on Regulation G’ for a discussion of non-GAAP financial measures):
(U.S. Dollars in millions, except per share data) Three Months Ended
December 31,
2023 2022
Net income available to Arch common shareholders $ 2,324  $ 849 
Net realized (gains) losses (1) (189) (80)
Equity in net (income) loss of investment funds accounted for using the equity method (102) (40)
Net foreign exchange (gains) losses 60  81 
Transaction costs and other — 
Income tax expense (benefit) (2) (1,152) (4)
After-tax operating income available to Arch common shareholders $ 945  $ 806 
Diluted per common share results:
Net income available to Arch common shareholders $ 6.12  $ 2.26 
Net realized (gains) losses (1) (0.50) (0.22)
Equity in net (income) loss of investment funds accounted for using the equity method (0.27) (0.11)
Net foreign exchange (gains) losses 0.16  0.22 
Transaction costs and other 0.01  0.00 
Income tax expense (benefit) (2) (3.03) (0.01)
After-tax operating income available to Arch common shareholders $ 2.49  $ 2.14 
Weighted average common shares and common share equivalents outstanding — diluted 379.8  375.9 
Beginning common shareholders’ equity $ 14,409  $ 10,966 
Ending common shareholders’ equity 17,523  12,080 
Average common shareholders’ equity $ 15,966  $ 11,523 
Annualized net income return on average common equity 58.2  % 29.5  %
Annualized operating return on average common equity 23.7  % 28.0  %
(1)    Net realized gains or losses include realized and unrealized changes in the fair value of equity securities and assets accounted for using the fair value option, realized and unrealized gains and losses on derivative instruments and changes in the allowance for credit losses on financial assets.
(2)    Income tax expense (benefit) on net realized gains or losses, equity in net income (loss) of investment funds accounted for using the equity method, net foreign exchange gains or losses and transaction costs and other reflects the relative mix reported by jurisdiction and the varying tax rates in each jurisdiction. The 2023 fourth quarter results were impacted by the establishment of a net deferred tax asset of $1.18 billion, or $3.10 per share, related to the enactment of Bermuda’s new corporate income tax.


2


Segment Information
The following section provides analysis on the Company’s 2023 fourth quarter performance by operating segment. For additional details regarding the Company’s operating segments, please refer to the Company’s Financial Supplement dated December 31, 2023. The Company’s segment information includes the use of underwriting income (loss) and a combined ratio excluding catastrophic activity and prior year development. Such items are non-GAAP financial measures (see ‘Comments on Regulation G’ for further details).
Insurance Segment
Three Months Ended December 31,
(U.S. Dollars in millions) 2023 2022 % Change
Gross premiums written $ 1,934  $ 1,644  17.6 
Net premiums written 1,449  1,217  19.1 
Net premiums earned 1,449  1,244  16.5 
Underwriting income $ 99  $ 98  1.0 
Underwriting Ratios % Point Change
Loss ratio 58.4  % 58.7  % (0.3)
Underwriting expense ratio 34.7  % 33.4  % 1.3 
Combined ratio 93.1  % 92.1  % 1.0 
Catastrophic activity and prior year development:
Current accident year catastrophic events, net of reinsurance and reinstatement premiums 3.8  % 2.8  % 1.0 
Net (favorable) adverse development in prior year loss reserves, net of related adjustments (0.5) % (0.3) % (0.2)
Combined ratio excluding catastrophic activity and prior year development 89.8  % 89.6  % 0.2 
Gross premiums written by the insurance segment in the 2023 fourth quarter were 17.6% higher than in the 2022 fourth quarter, while net premiums written were 19.1% higher than in the 2022 fourth quarter. Growth in net premiums written reflected increases in most lines of business, due in part to new business opportunities, increases in existing accounts and rate changes. In addition, the insurance segment retained a higher portion of business written in the 2023 fourth quarter than in the 2022 fourth quarter. Net premiums earned in the 2023 fourth quarter were 16.5% higher than in the 2022 fourth quarter, and reflect changes in net premiums written over the previous five quarters.
The 2023 fourth quarter loss ratio reflected 3.8 points of current year catastrophic activity, spread across a series of global events, compared to 2.8 points of catastrophic activity in the 2022 fourth quarter. Estimated net favorable development of prior year loss reserves, before related adjustments, reduced the loss ratio by 0.6 points in the 2023 fourth quarter, compared to 0.5 points in the 2022 fourth quarter. The improvement in the 2023 fourth quarter loss ratio also reflected the impact of rate increases and changes in mix of business.
The underwriting expense ratio was 34.7% in the 2023 fourth quarter, compared to 33.4% in the 2022 fourth quarter, with the increase primarily related to higher incentive compensation costs.
3


Reinsurance Segment
Three Months Ended December 31,
(U.S. Dollars in millions) 2023 2022 % Change
Gross premiums written $ 1,971  $ 1,797  9.7 
Net premiums written 1,557  1,543  0.9 
Net premiums earned 1,620  1,225  32.2 
Other underwriting income (loss) (1)  n/m
Underwriting income $ 330  $ 263  25.5 
Underwriting Ratios % Point Change
Loss ratio 52.3  % 52.9  % (0.6)
Underwriting expense ratio 27.7  % 25.5  % 2.2 
Combined ratio 80.0  % 78.4  % 1.6 
Catastrophic activity and prior year development:
Current accident year catastrophic events, net of reinsurance and reinstatement premiums 5.1  % 0.0  % 5.1 
Net (favorable) adverse development in prior year loss reserves, net of related adjustments (1.3) % (4.5) % 3.2 
Combined ratio excluding catastrophic activity and prior year development 76.2  % 82.9  % (6.7)
Gross premiums written by the reinsurance segment in the 2023 fourth quarter were 9.7% higher than in the 2022 fourth quarter, while net premiums written were 0.9% higher than in the 2022 fourth quarter. The comparison of gross and net premiums written were affected by a few non-recurring transactions in the 2022 fourth quarter, primarily impacting the other specialty line of business. Absent these items, gross and net premiums written would have been higher than in the 2022 fourth quarter by 23.1% and 25.6%, respectively. The growth in net premiums written primarily reflected increases in property excluding property catastrophe and other specialty lines, due in part to rate increases, new business opportunities and growth in existing accounts. Net premiums earned in the 2023 fourth quarter were 32.2% higher than in the 2022 fourth quarter, and reflect changes in net premiums written over the previous five quarters.
The 2023 fourth quarter loss ratio reflected 5.4 points of current year catastrophic activity, spread across a series of global events, compared to minimal catastrophic activity in the 2022 fourth quarter. Estimated net favorable development of prior year loss reserves, before related adjustments, reduced the loss ratio by 1.6 points in the 2023 fourth quarter, compared to 5.2 points in the 2022 fourth quarter. The improvement in the 2023 fourth quarter loss ratio also reflected the impact of rate increases and changes in mix of business.
The underwriting expense ratio was 27.7% in the 2023 fourth quarter, compared to 25.5% in the 2022 fourth quarter, with the increase primarily related to the non-recurring transactions in the 2022 fourth quarter noted above and a higher level of incentive compensation costs in the 2023 fourth quarter.
4


Mortgage Segment
Three Months Ended December 31,
(U.S. Dollars in millions) 2023 2022 % Change
Gross premiums written $ 350  $ 356  (1.7)
Net premiums written 255  275  (7.3)
Net premiums earned 275  292  (5.8)
Other underwriting income (loss) — 
Underwriting income $ 286  $ 373  (23.3)
Underwriting Ratios % Point Change
Loss ratio (20.6) % (46.9) % 26.3 
Underwriting expense ratio 17.3  % 19.8  % (2.5)
Combined ratio (3.3) % (27.1) % 23.8 
Prior year development:
Net (favorable) adverse development in prior year loss reserves, net of related adjustments (39.0) % (72.1) % 33.1 
Combined ratio excluding prior year development 35.7  % 45.0  % (9.3)
Gross premiums written by the mortgage segment in the 2023 fourth quarter were 1.7% lower than in the 2022 fourth quarter, while net premiums written were 7.3% lower. The reduction in net premiums written in the 2023 fourth quarter primarily reflected a higher level of premiums ceded, with $17 million of one-time payments related to the termination of eight Bellemeade agreements. Net premiums earned in the 2023 fourth quarter were 5.8% lower than in the 2022 fourth quarter, primarily due to termination of the Bellemeade agreements.
Estimated net favorable development of prior year loss reserves, before related adjustments, decreased the loss ratio by 36.6 points, primarily related to the 2022 accident year from the U.S. first lien portfolio and to a lesser extent the 2020 and 2021 accident years, compared to 71.1 points in the 2022 fourth quarter. Such amounts were primarily related to better than expected cure rates. The 2023 fourth quarter loss ratio, excluding net favorable development, was down compared to the 2022 fourth quarter, reflecting lower estimated claim rates partially offset by slightly higher new delinquencies.
The underwriting expense ratio was 17.3% in the 2023 fourth quarter, compared to 19.8% in the 2022 fourth quarter. The decrease was primarily due to higher level of ceding and profit commissions on ceded U.S. primary business.

5


Corporate Segment
The corporate segment results include net investment income, net realized gains or losses (which includes realized and unrealized changes in the fair value of equity securities and assets accounted for using the fair value option, realized and unrealized gains and losses on derivative instruments and changes in the allowance for credit losses on financial assets), equity in net income or loss of investment funds accounted for using the equity method, other income (loss), corporate expenses, transaction costs and other, amortization of intangible assets, interest expense, net foreign exchange gains or losses, income tax items (which for the 2023 fourth quarter reflects the establishment of a net deferred tax asset related to the enactment of Bermuda’s new corporate income tax), income or loss from operating affiliates and items related to the Company’s non-cumulative preferred shares.
Investment returns were as follows:
(U.S. Dollars in millions, except per share data) Three Months Ended
December 31, September 30, December 31,
2023 2023 2022
Pre-tax net investment income $ 313  $ 269  $ 181 
Per share $ 0.82  $ 0.71  $ 0.48 
Equity in net income (loss) of investment funds accounted for using the equity method $ 102  $ 59  $ 40 
Per share $ 0.27  $ 0.16  $ 0.11 
Pre-tax investment income yield, at amortized cost (1) 4.11  % 3.68  % 2.80  %
Total return on investments (2) 4.76  % (0.40) % 2.60  %
(1)    Presented on an annualized basis and excluding the impact of investments for which returns are not included within investment income, such as investments accounted for using the equity method and certain equities.
(2)    Presentation represents a “non-GAAP” financial measure as defined in Regulation G. See ‘Comments on Regulation G’ for further details.
The growth in net investment income in the 2023 fourth quarter primarily reflected the effects of higher interest rates available in the market, along with growth in invested assets due in part to strong operating cash flows. Net realized gains were $189 million for the 2023 fourth quarter, compared to net realized gains of $80 million in the 2022 fourth quarter, and reflected sales of investments as well as the impact of financial market movements on the Company’s derivatives, equity securities and investments accounted for under the fair value option method.
On a pre-tax basis, net foreign exchange losses for the 2023 fourth quarter were $59 million, compared to net foreign exchange losses of $81 million for the 2022 fourth quarter. For both periods, such amounts were primarily unrealized and resulted from the effects of revaluing the Company’s net insurance liabilities required to be settled in foreign currencies at each balance sheet date. Changes in the value of available-for-sale investments held in foreign currencies due to foreign currency rate movements are reflected as a direct increase or decrease to shareholders’ equity and are not included in the consolidated statements of income.
On December 27, 2023, the Government of Bermuda enacted the Corporate Income Tax Act 2023, which will apply a 15% corporate income tax to certain Bermuda businesses in fiscal years beginning on or after January 1, 2025. The act includes a provision referred to as the economic transition adjustment, which is intended to provide a fair and equitable transition into the tax regime. Pursuant to this legislation, the Company recorded a $1.18 billion net deferred tax asset in the fourth quarter of 2023, expected to be utilized predominantly over a 10-year period. The Company expects to incur and pay increased taxes in Bermuda beginning in 2025.
The Company’s effective tax rate on income before income taxes was a benefit of 85.6% for the 2023 fourth quarter and a benefit of 24.5% for the year ended December 31, 2023, compared to an expense of 6.6% for the 2022 fourth quarter and an expense of 5.1% for the year ended December 31, 2022. The Company’s effective tax rate on income before income taxes included the one-time deferred tax benefit mentioned above. The Company’s effective tax rate on pre-tax operating income available to Arch common shareholders was 7.3% for the 2023 fourth quarter and 8.0% for the year ended December 31, 2023, compared to 7.5% for the 2022 fourth quarter and 6.2% for the year ended December 31, 2022. The effective tax rate may fluctuate from period to period based upon the relative mix of income or loss reported by jurisdiction, the level of catastrophic loss activity incurred, and the varying tax rates in each jurisdiction.
Income from operating affiliates for the 2023 fourth quarter was $69 million, or $0.18 per share, compared to $36 million, or $0.10 per share, for the 2022 fourth quarter, and primarily reflects amounts related to the Company’s investment in Somers Group Holdings Ltd. and Coface SA.
6


Conference Call
The Company will hold a conference call for investors and analysts at 11:00 a.m. Eastern Time on February 15, 2024. A live webcast of this call will be available via the Investors section of the Company’s website at http://www.archgroup.com/investors. A recording of the webcast will be available in the Investors section of the Company’s website approximately two hours after the event concludes and will be archived on the site for one year.
Please refer to the Company’s Financial Supplement dated December 31, 2023, which is available via the Investors section of the Company’s website at http://www.archgroup.com/investors. The Financial Supplement provides additional detail regarding the financial performance of the Company. From time to time, the Company posts additional financial information and presentations to its website, including information with respect to its subsidiaries. Investors and other recipients of this information are encouraged to check the Company’s website regularly for additional information regarding the Company.
Arch Capital Group Ltd., is a publicly listed Bermuda exempted company with approximately $21.1 billion in capital at December 31, 2023. Arch, which is part of the S&P 500 index, provides insurance, reinsurance and mortgage insurance on a worldwide basis through its wholly owned subsidiaries.
Comments on Regulation G
Throughout this release, the Company presents its operations in the way it believes will be the most meaningful and useful to investors, analysts, rating agencies and others who use the Company’s financial information in evaluating the performance of the Company and that investors and such other persons benefit from having a consistent basis for comparison between quarters and for comparison with other companies within the industry. These measures may not, however, be comparable to similarly titled measures used by companies outside of the insurance industry. Investors are cautioned not to place undue reliance on these non-GAAP financial measures in assessing the Company’s overall financial performance.
This presentation includes the use of “after-tax operating income or loss available to Arch common shareholders,” which is defined as net income available to Arch common shareholders, excluding net realized gains or losses (which includes changes in the allowance for credit losses on financial assets and net impairment losses recognized in earnings), equity in net income or loss of investment funds accounted for using the equity method, net foreign exchange gains or losses, transaction costs and other, net of income taxes (which for the 2023 fourth quarter reflects the establishment of a net deferred tax asset related to the enactment of Bermuda’s new corporate income tax), and the use of annualized operating return on average common equity. The presentation of after-tax operating income available to Arch common shareholders and annualized operating return on average common equity are non-GAAP financial measures as defined in Regulation G. The reconciliation of such measures to net income available to Arch common shareholders and annualized net income return on average common equity (the most directly comparable GAAP financial measures) in accordance with Regulation G is included on page 2 of this release.
The Company believes that net realized gains or losses, equity in net income or loss of investment funds accounted for using the equity method, net foreign exchange gains or losses and transaction costs and other, in any particular period are not indicative of the performance of, or trends in, the Company’s business performance. Although net realized gains or losses, equity in net income or loss of investment funds accounted for using the equity method and net foreign exchange gains or losses are an integral part of the Company’s operations, the decision to realize these items are independent of the insurance underwriting process and result, in large part, from general economic and financial market conditions. Furthermore, certain users of the Company’s financial information believe that, for many companies, the timing of the realization of investment gains or losses is largely opportunistic. In addition, changes in the allowance for credit losses and net impairment losses recognized in earnings on the Company’s investments represent other-than-temporary declines in expected recovery values on securities without actual realization.
The use of the equity method on certain of the Company’s investments in certain funds that invest in fixed maturity securities is driven by the ownership structure of such funds (either limited partnerships or limited liability companies). In applying the equity method, these investments are initially recorded at cost and are subsequently adjusted based on the Company’s proportionate share of the net income or loss of the funds (which include changes in the fair value of the underlying securities in the funds). This method of accounting is different from the way the Company accounts for its other fixed maturity securities and the timing of the recognition of equity in net income or loss of investment funds accounted for using the equity method may differ from gains or losses in the future upon sale or maturity of such investments.
Transaction costs and other include advisory, financing, legal, severance, incentive compensation and other costs related to acquisitions. The Company believes that transaction costs and other, due to their non-recurring nature, are not indicative of the performance of, or trends in, the Company’s business performance.
7


In the 2023 fourth quarter, the Company established a net deferred tax benefit of $1.18 billion consistent with the transition provisions specified in the Bermuda Corporate Income Tax Act of 2023. Due to the non-recurring nature of this one-time item, the Company believes that excluding this item from after-tax operating income or loss available to common shareholders provides the user with a better evaluation of the Company’s ongoing business performance.
The Company believes that showing net income available to Arch common shareholders exclusive of the items referred to above reflects the underlying fundamentals of the Company’s business since the Company evaluates the performance of and manages its business to produce an underwriting profit. In addition to presenting net income available to Arch common shareholders, the Company believes that this presentation enables investors and other users of the Company’s financial information to analyze the Company’s performance in a manner similar to how the Company’s management analyzes performance. The Company also believes that this measure follows industry practice and, therefore, allows the users of the Company’s financial information to compare the Company’s performance with its industry peer group. The Company believes that the equity analysts and certain rating agencies that follow the Company and the insurance industry as a whole generally exclude these items from their analyses for the same reasons.
The Company’s segment information includes the presentation of consolidated underwriting income or loss and a subtotal of underwriting income or loss. Such measures represent the pre-tax profitability of its underwriting operations and include net premiums earned plus other underwriting income, less losses and loss adjustment expenses, acquisition expenses and other operating expenses. Other operating expenses include those operating expenses that are incremental and/or directly attributable to the Company’s individual underwriting operations. Underwriting income or loss does not incorporate items included in the Company’s corporate segment. While these measures are presented in the Segment Information footnote to the Company’s Consolidated Financial Statements, they are considered non-GAAP financial measures when presented elsewhere on a consolidated basis. The reconciliations of underwriting income or loss to income before income taxes (the most directly comparable GAAP financial measure) on a consolidated basis, in accordance with Regulation G, is shown on the following pages.
Management measures segment performance for its three underwriting segments based on underwriting income or loss. The Company does not manage its assets by underwriting segment and, accordingly, investment income, income from operating affiliates and other corporate segment related items are not allocated to each underwriting segment.
In addition, the Company’s segment information includes the use of a combined ratio excluding catastrophic activity and prior year development, for the insurance and reinsurance segments, and a combined ratio excluding prior year development, for the mortgage segment. These ratios are non-GAAP financial measures as defined in Regulation G. The reconciliation of such measures to the combined ratio (the most directly comparable GAAP financial measure) in accordance with Regulation G are shown on the individual segment pages. The Company’s management utilizes the adjusted combined ratios excluding current accident year catastrophic events and favorable or adverse development in prior year loss reserves in its analysis of the underwriting performance of each of its underwriting segments.
Total return on investments includes investment income, equity in net income or loss of investment funds accounted for using the equity method, net realized gains and losses (excluding changes in the allowance for credit losses on non-investment related financial assets) and the change in unrealized gains and losses generated by Arch’s investment portfolio. Total return is calculated on a pre-tax basis and before investment expenses and reflects the effect of financial market conditions along with foreign currency fluctuations. Management uses total return on investments as a key measure of the return generated to Arch common shareholders, and compares the return generated by the Company’s investment portfolio against benchmark returns during the periods presented.
8


The following tables summarize the Company’s results by segment for the 2023 fourth quarter and 2022 fourth quarter and a reconciliation of underwriting income or loss to income or loss before income taxes and net income or loss available to Arch common shareholders:
(U.S. Dollars in millions) Three Months Ended
December 31, 2023
  Insurance Reinsurance Mortgage Total
Gross premiums written (1) $ 1,934  $ 1,971  $ 350  $ 4,251 
Premiums ceded (485) (414) (95) (990)
Net premiums written 1,449  1,557  255  3,261 
Change in unearned premiums —  63  20  83 
Net premiums earned 1,449  1,620  275  3,344 
Other underwriting income (loss) —  10 
Losses and loss adjustment expenses (846) (848) 57  (1,637)
Acquisition expenses (277) (365) (1) (643)
Other operating expenses (227) (85) (47) (359)
Underwriting income (loss) $ 99  $ 330  $ 286  715 
Net investment income 313 
Net realized gains (losses) 189 
Equity in net income (loss) of investment funds accounted for using the equity method 102 
Other income (loss) 17 
Corporate expenses (2) (27)
Transaction costs and other (2) (4)
Amortization of intangible assets (24)
Interest expense (34)
Net foreign exchange gains (losses) (59)
Income (loss) before income taxes and income (loss) from operating affiliates 1,188 
Income tax benefit (expense) 1,076 
Income (loss) from operating affiliates 69 
Net income (loss) 2,333 
Dividends attributable to redeemable noncontrolling interests
Net income (loss) available to Arch 2,334 
Preferred dividends (10)
Net income (loss) available to Arch common shareholders $ 2,324 
Underwriting Ratios
Loss ratio 58.4  % 52.3  % (20.6) % 49.0  %
Acquisition expense ratio 19.1  % 22.5  % 0.2  % 19.2  %
Other operating expense ratio 15.6  % 5.2  % 17.1  % 10.7  %
Combined ratio 93.1  % 80.0  % (3.3) % 78.9  %
Net premiums written to gross premiums written 74.9  % 79.0  % 72.9  % 76.7  %

(1)    Certain amounts included in the gross premiums written of each segment are related to intersegment transactions and are included in the gross premiums written of each segment. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.
(2)    Certain expenses have been excluded from ‘corporate expenses’ and reflected in ‘Transaction costs and other.’ See ‘Comments on Regulation G’ for a further discussion of such items.
9


(U.S. Dollars in millions) Three Months Ended
December 31, 2022
  Insurance Reinsurance Mortgage Total
Gross premiums written (1) $ 1,644  $ 1,797  $ 356  $ 3,795 
Premiums ceded (427) (254) (81) (760)
Net premiums written 1,217  1,543  275  3,035 
Change in unearned premiums 27  (318) 17  (274)
Net premiums earned 1,244  1,225  292  2,761 
Other underwriting income (loss) —  (1)
Losses and loss adjustment expenses (730) (648) 137  (1,241)
Acquisition expenses (244) (244) (13) (501)
Other operating expenses (172) (69) (45) (286)
Underwriting income (loss) $ 98  $ 263  $ 373  734 
Net investment income 181 
Net realized gains (losses) 80 
Equity in net income (loss) of investment funds accounted for using the equity method 40 
Other income (loss)
Corporate expenses (2) (17)
Transaction costs and other (2) — 
Amortization of intangible assets (26)
Interest expense (32)
Net foreign exchange gains (losses) (81)
Income (loss) before income taxes and income (loss) from operating affiliates 887 
Income tax benefit (expense) (61)
Income (loss) from operating affiliates 36 
Net income (loss) 862 
Dividends attributable to redeemable noncontrolling interests (3)
Net income (loss) available to Arch 859 
Preferred dividends (10)
Net income (loss) available to Arch common shareholders $ 849 
Underwriting Ratios
Loss ratio 58.7  % 52.9  % (46.9) % 45.0  %
Acquisition expense ratio 19.6  % 19.9  % 4.4  % 18.1  %
Other operating expense ratio 13.8  % 5.6  % 15.4  % 10.4  %
Combined ratio 92.1  % 78.4  % (27.1) % 73.5  %
Net premiums written to gross premiums written 74.0  % 85.9  % 77.2  % 80.0  %
 
(1)    Certain amounts included in the gross premiums written of each segment are related to intersegment transactions and are included in the gross premiums written of each segment. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.
(2)    Certain expenses have been excluded from ‘corporate expenses’ and reflected in ‘Transaction costs and other.’ See ‘Comments on Regulation G’ for a further discussion of such items.

10


Cautionary Note Regarding Forward-Looking Statements
The Private Securities Litigation Reform Act of 1995 (“PSLRA”) provides a “safe harbor” for forward-looking statements. This release or any other written or oral statements made by or on behalf of the Company may include forward-looking statements, which reflect the Company’s current views with respect to future events and financial performance. All statements other than statements of historical fact included in or incorporated by reference in this release are forward-looking statements. Forward-looking statements, for purposes of the PSLRA or otherwise, can generally be identified by the use of forward-looking terminology such as “may,” “will,” “expect,” “intend,” “estimate,” “anticipate,” “believe” or “continue” and similar statements of a future or forward-looking nature or their negative or variations or similar terminology.
Forward-looking statements involve the Company’s current assessment of risks and uncertainties. Actual events and results may differ materially from those expressed or implied in these statements. Important factors that could cause actual events or results to differ materially from those indicated in such statements are discussed below and elsewhere in this release and in the Company’s periodic reports filed with the Securities and Exchange Commission (the “SEC”), and include:
•the Company’s ability to successfully implement its business strategy during “soft” as well as “hard” markets;
•acceptance of the Company’s business strategy, security and financial condition by rating agencies and regulators, as well as by brokers and its insureds and reinsureds;
•the Company’s ability to consummate acquisitions and integrate any businesses it has acquired or may acquire into its existing operations;
•the Company’s ability to maintain or improve its ratings, which may be affected by its ability to raise additional equity or debt financings, by ratings agencies’ existing or new policies and practices, as well as other factors described herein;
•general economic and market conditions (including inflation, interest rates, unemployment, housing prices, foreign currency exchange rates, prevailing credit terms and the depth and duration of a recession, including those resulting from COVID-19) and conditions specific to the reinsurance and insurance markets in which the Company operates;
•competition, including increased competition, on the basis of pricing, capacity (including alternative sources of capital), coverage terms or other factors;
•developments in the world’s financial and capital markets and the Company’s access to such markets;
•the Company’s ability to successfully enhance, integrate and maintain operating procedures (including information technology) to effectively support its current and new business;
•the loss and addition of key personnel;
•material differences between actual and expected assessments for guaranty funds and mandatory pooling arrangements;
•accuracy of those estimates and judgments utilized in the preparation of the Company’s financial statements, including those related to revenue recognition, insurance and other reserves, reinsurance recoverables, investment valuations, intangible assets, bad debts, income taxes, deferred tax assets, contingencies and litigation, and any determination to use the deposit method of accounting;
•greater than expected loss ratios on business written by the Company and adverse development on claim and/or claim expense liabilities related to business written by its insurance and reinsurance subsidiaries;
•the adequacy of the Company’s loss reserves;
•severity and/or frequency of losses;
•greater frequency or severity of unpredictable natural and man-made catastrophic events;
•claims resulting from natural or man-made catastrophic events or severe economic events in the Company’s insurance, reinsurance and mortgage businesses could cause large losses and substantial volatility in the Company’s results of operations;
•the effect of climate change on the Company’s business;
•the effect of contagious diseases (including COVID-19) on the Company’s business;
•acts of terrorism, geopolitical political unrest and other regional and global hostilities or other unforecasted and unpredictable events;
•availability to the Company of reinsurance to manage its gross and net exposures and the cost of such reinsurance;
•the failure of reinsurers, managing general agents, third party administrators or others to meet their obligations to the Company;
11


•the timing of loss payments being faster or the receipt of reinsurance recoverables being slower than anticipated by the Company;
•the Company’s investment performance, including legislative or regulatory developments that may adversely affect the fair value of the Company’s investments;
•changes in general economic conditions, including new or continued sovereign debt concerns or downgrades of U.S. securities by credit rating agencies, which could affect the Company’s business, financial condition and results of operations;
•the volatility of the Company’s shareholders’ equity from foreign currency fluctuations, which could increase due to us not matching portions of the Company’s projected liabilities in foreign currencies with investments in the same currencies;
•changes in accounting principles or policies or in the Company’s application of such accounting principles or policies;
•changes in the political environment of certain countries in which the Company operates, underwrites business or invests;
•an incident, disruption in operations or other cyber event caused by cyber attacks, the use of artificial intelligence technologies or other technology on the Company’s systems or those of the Company’s business partners and service providers, which could negatively impact the Company’s business and/or expose the Company to litigation;
•statutory or regulatory developments, including as to tax matters and insurance and other regulatory matters such as the adoption of legislation that affects Bermuda-headquartered companies and/or Bermuda-based insurers or reinsurers and/or changes in regulations or tax laws applicable to the Company, its subsidiaries, brokers or customers, including the implementation of the Organization for Economic Cooperation and Development (“OECD”) Pillar I and Pillar II initiative and the enactment of the Bermuda corporate income tax; and
•the other matters set forth under Item 1A “Risk Factors”, Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and other sections of the Company’s Annual Report on Form 10-K, as well as the other factors set forth in the Company’s other documents on file with the SEC, and management’s response to any of the aforementioned factors.
All subsequent written and oral forward-looking statements attributable to the Company or persons acting on its behalf are expressly qualified in their entirety by these cautionary statements. The foregoing review of important factors should not be construed as exhaustive and should be read in conjunction with other cautionary statements that are included herein or elsewhere. The Company undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.
Contacts
Arch Capital Group Ltd. Investor Relations
François Morin: (441) 278-9250 Donald Watson: (914) 872-3616; dwatson@archgroup.com
Source - Arch Capital Group Ltd.
arch-corporate

12
EX-99.2 3 ex-992supplement123123.htm EX-99.2 Document

EXHIBIT 99.2
arch-slantedxheaderxbluexga.gif
Arch Capital Group Ltd.
Waterloo House, Ground Floor
100 Pitts Bay Road
Pembroke HM 08 Bermuda


Financial Supplement
December 31, 2023
 
The following financial supplement is provided to assist in your understanding of Arch Capital Group Ltd. (“Arch”) and its subsidiaries (collectively, the “Company”).
 
This report is for informational purposes only. It should be read in conjunction with documents filed by Arch with the U.S. Securities and Exchange Commission, including the most recent Annual Report on Form 10-K and the Quarterly Reports on Form 10-Q. Please refer to the Company’s website at www.archgroup.com for further information describing Arch.

arch-slantedxcontactsxbluea.gif
Arch Capital Group Ltd. Investor Relations
François Morin: (441) 278-9250 Donald Watson: (914) 872-3616; dwatson@archgroup.com



Arch Capital Group Ltd. and Subsidiaries
Table of Contents

    Page
     
I. Financial Highlights
   
II. Consolidated Financial Statements
  a. Consolidated Statements of Income
  b. Consolidated Balance Sheets
  c. Consolidated Statements of Changes in Shareholders’ Equity
  d. Consolidated Statements of Cash Flows
   
III. Segment Information
  a. Overview
  b. Consolidated Results
  c. Insurance Segment Results
  d. Reinsurance Segment Results
e. Mortgage Segment Results
f. Segment Consolidated Results
g. Selected Information on Losses and Loss Adjustment Expenses
   
IV. Investment Information
  a. Investable Asset Summary and Investment Portfolio Metrics
b. Composition of Net Investment Income, Yield and Total Return
  c. Composition of Fixed Maturities
d. Credit Quality Distribution and Maturity Profile
e. Analysis of Corporate Exposures
  f. Structured Securities
   
V. Other
  a. Comments on Regulation G
  b. Operating Income Reconciliation and Annualized Operating Return on Average Common Equity
c. Operating Income and Effective Tax Rate Calculations
  d. Capital Structure and Share Repurchase Activity

1

Arch Capital Group Ltd. and Subsidiaries
Basis of Presentation
Basis of Presentation
All financial information contained herein is unaudited, however, certain information relating to the consolidated balance sheet at December 31, 2022 is derived from or agrees to audited financial information. Unless otherwise noted, all amounts are in millions, except for per share amounts and ratio information. Amounts presented have been rounded for presentation purposes and may not reconcile due to rounding differences.
Cautionary Note Regarding Forward-Looking Statements
The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. This release or any other written or oral statements made by or on behalf of Arch and its subsidiaries may include forward-looking statements, which reflect the Company’s current views with respect to future events and financial performance. All statements other than statements of historical fact included in or incorporated by reference in this release are forward-looking statements.
Forward-looking statements can generally be identified by the use of forward-looking terminology such as “may,” “will,” “expect,” “intend,” “estimate,” “anticipate,” “believe” or “continue” or their negative or variations or similar terminology. Forward-looking statements involve the Company’s current assessment of risks and uncertainties. Actual events and results may differ materially from those expressed or implied in these statements. A non-exclusive list of the important factors that could cause actual results to differ materially from those in such forward-looking statements includes the following: adverse general economic and market conditions; increased competition; pricing and policy term trends; fluctuations in the actions of rating agencies and the Company’s ability to maintain and improve the Company’s ratings; investment performance; the loss and addition of key personnel; the adequacy of the Company’s loss reserves, severity and/or frequency of losses, greater than expected loss ratios and adverse development on claim and/or claim expense liabilities; greater frequency or severity of unpredictable natural and man-made catastrophic events, including pandemics such as COVID-19; the impact of acts of terrorism and acts of war; changes in regulations and/or tax laws in the United States or elsewhere; the Company’s ability to successfully integrate, establish and maintain operating procedures as well as integrate the businesses we have acquired or may acquire into the existing operations; changes in accounting principles or policies; material differences between actual and expected assessments for guaranty funds and mandatory pooling arrangements; availability and cost to the Company of reinsurance to manage gross and net exposures; the failure of others to meet their obligations to the Company; an incident, disruption in operations or other cyber event caused by cyber attacks, the use of artificial intelligence technologies or other technology on the Company’s systems or those of the Company’s business partners and service providers, which could negatively impact the Company’s business and/or expose the Company to litigation; and other factors identified in the Company’s filings with the U.S. Securities and Exchange Commission.
The foregoing review of important factors should not be construed as exhaustive and should be read in conjunction with other cautionary statements that are included herein or elsewhere. All subsequent written and oral forward-looking statements attributable to the Company or persons acting on the Company’s behalf are expressly qualified in their entirety by these cautionary statements. The Company undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.
2

Arch Capital Group Ltd. and Subsidiaries
Financial Highlights
The following table presents financial highlights:
(U.S. Dollars and shares in millions, except per share data) Three Months Ended Year Ended
December 31, December 31,
2023 2022 Change 2023 2022 Change
Underwriting results:
Gross premiums written $ 4,251  $ 3,795  12.0  % $ 18,403  $ 15,327  20.1  %
Net premiums written 3,261  3,035  7.4  % 13,468  11,078  21.6  %
Net premiums earned 3,344  2,761  21.1  % 12,440  9,679  28.5  %
Underwriting income (loss) (1) 715  734  (2.6) % 2,612  1,796  45.4  %
Loss ratio 49.0  % 45.0  % 4.0  50.2  % 51.9  % (1.7)
Acquisition expense ratio 19.2  % 18.1  % 1.1  18.6  % 18.0  % 0.6 
Other operating expense ratio 10.7  % 10.4  % 0.3  10.5  % 11.7  % (1.2)
Combined ratio 78.9  % 73.5  % 5.4  79.3  % 81.6  % (2.3)
Net investment income $ 313  $ 181  72.9  % $ 1,023  $ 496  106.3  %
Per diluted share $ 0.82  $ 0.48  70.8  % $ 2.70  $ 1.31  106.1  %
Net income available to Arch common shareholders $ 2,324  $ 849  173.7  % $ 4,403  $ 1,436  206.6  %
Per diluted share $ 6.12  $ 2.26  170.8  % $ 11.62  $ 3.80  205.8  %
After-tax operating income available to Arch common shareholders (1) $ 945  $ 806  17.2  % $ 3,201  $ 1,840  74.0  %
Per diluted share $ 2.49  $ 2.14  16.4  % $ 8.45  $ 4.87  73.5  %
Comprehensive income (loss) available to Arch $ 3,111  $ 1,105  181.5  % $ 5,413  $ (105) n/m
Net cash provided by operating activities $ 1,665  $ 982  69.6  % $ 5,749  $ 3,816  50.7  %
Weighted average common shares and common share equivalents outstanding — diluted 379.8  375.9  1.0  % 378.8  377.6  0.3  %
Financial measures:            
Change in book value per common share during period 21.5  % 9.9  % 11.6  43.9  % (2.8) % 46.7 
Annualized net income return on average common equity 58.2  % 29.5  % 28.7  29.7  % 11.6  % 18.1 
Annualized operating return on average common equity (1) 23.7  % 28.0  % (4.3) 21.6  % 14.8  % 6.8 
Total return on investments (2) 4.76  % 2.60  % 215 bps 7.57  % (6.45) % 1402 bps
 

(1)See ‘Comments on Regulation G’ for a further discussion of consolidated underwriting income or loss, after-tax operating income or loss available to Arch common shareholders and annualized operating return on average common equity.
(2)Total return on investments includes investment income, equity in net income (loss) of investment funds accounted for using the equity method, net realized gains and losses and the change in unrealized gains and losses and is calculated on a pre-tax basis and before investment expenses. See ‘Comments on Regulation G’ for a further discussion of the presentation of total return on investments.
3

Arch Capital Group Ltd. and Subsidiaries
Consolidated Statements of Income
(U.S. Dollars and shares in millions, except per share data) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Revenues              
Net premiums earned $ 3,344  $ 3,248  $ 2,965  $ 2,883  $ 2,761  $ 12,440  $ 9,679 
Net investment income 313  269  242  199  181  1,023  496 
Net realized gains (losses) 189  (248) (123) 17  80  (165) (663)
Other underwriting income 10  10  31  13 
Equity in net income (loss) of investment funds accounted for using the equity method 102  59  69  48  40  278  115 
Other income (loss) 17  (4) 11  27  (27)
Total revenues 3,975  3,329  3,162  3,168  3,071  13,634  9,613 
Expenses
Losses and loss adjustment expenses (1,637) (1,647) (1,491) (1,471) (1,241) (6,246) (5,028)
Acquisition expenses (643) (575) (561) (533) (501) (2,312) (1,740)
Other operating expenses (359) (310) (313) (319) (286) (1,301) (1,128)
Corporate expenses (31) (20) (21) (30) (17) (102) (95)
Amortization of intangible assets (24) (24) (24) (23) (26) (95) (106)
Interest expense (34) (34) (33) (32) (32) (133) (131)
Net foreign exchange gains (losses) (59) 22  (5) (18) (81) (60) 102 
Total expenses (2,787) (2,588) (2,448) (2,426) (2,184) (10,249) (8,126)
Income (loss) before income taxes and income (loss) from operating affiliates 1,188  741  714  742  887  3,385  1,487 
Income tax (expense) benefit 1,076  (72) (67) (64) (61) 873  (80)
Income (loss) from operating affiliates 69  54  22  39  36  184  75 
Net income (loss) 2,333  723  669  717  862  4,442  1,482 
Net (income) loss attributable to noncontrolling interests —  (2) (3) (6)
Net income (loss) attributable to Arch 2,334  723  671  715  859  4,443  1,476 
Preferred dividends (10) (10) (10) (10) (10) (40) (40)
Net income (loss) available to Arch common shareholders $ 2,324  $ 713  $ 661  $ 705  $ 849  $ 4,403  $ 1,436 
Comprehensive income (loss) available to Arch $ 3,111  $ 589  $ 649  $ 1,064  $ 1,105  $ 5,413  $ (105)
Net income (loss) per common share and common share equivalent
Basic $ 6.29  $ 1.93  $ 1.79  $ 1.92  $ 2.32  $ 11.94  $ 3.90 
Diluted $ 6.12  $ 1.88  $ 1.75  $ 1.87  $ 2.26  $ 11.62  $ 3.80 
Weighted average common shares and common share equivalents outstanding
Basic 369.6  369.2  368.7  367.3  365.9  368.7  368.6 
Diluted 379.8  379.4  378.4  377.6  375.9  378.8  377.6 



4

Arch Capital Group Ltd. and Subsidiaries
Consolidated Balance Sheets

(U.S. Dollars and shares in millions, except per share data) December 31, September 30, June 30, March 31, December 31,
2023 2023 2023 2023 2022
Assets          
Investments:          
Fixed maturities available for sale, at fair value $ 23,553  $ 22,485  $ 21,434  $ 20,692  $ 19,683 
Short-term investments available for sale, at fair value 2,063  1,682  1,702  1,553  1,332 
Equity securities, at fair value 1,186  894  911  859  860 
Other investments 2,488  2,068  1,846  1,776  1,644 
Investments accounted for using the equity method 4,566  4,251  4,073  3,896  3,774 
Total investments 33,856  31,380  29,966  28,776  27,293 
Cash 917  859  904  803  855 
Accrued investment income 236  217  233  163  159 
Investment in operating affiliates 1,119  1,000  973  1,015  965 
Premiums receivable 4,644  4,937  5,296  4,513  3,625 
Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses 7,064  6,821  6,717  6,612  6,564 
Contractholder receivables 1,814  1,805  1,761  1,750  1,731 
Ceded unearned premiums 2,170  2,444  2,459  2,116  1,799 
Deferred acquisition costs 1,531  1,483  1,452  1,355  1,264 
Receivable for securities sold 63  59  97  84  12 
Goodwill and intangible assets 731  739  775  785  804 
Other assets 4,761  3,483  3,223  3,131  2,919 
Total assets $ 58,906  $ 55,227  $ 53,856  $ 51,103  $ 47,990 
Liabilities          
Reserve for losses and loss adjustment expenses $ 22,752  $ 21,836  $ 21,268  $ 20,758  $ 20,032 
Unearned premiums 8,808  9,074  9,052  8,218  7,337 
Reinsurance balances payable 2,000  2,215  2,191  1,819  1,530 
Contractholder payables 1,817  1,807  1,764  1,752  1,734 
Collateral held for insured obligations 259  274  275  252  249 
Senior notes 2,726  2,726  2,726  2,726  2,725 
Payable for securities purchased 247  417  526  262  95 
Other liabilities 1,942  1,637  1,411  1,317  1,367 
Total liabilities 40,551  39,986  39,213  37,104  35,069 
Redeemable noncontrolling interests 11  11 
Shareholders’ equity          
Non-cumulative preferred shares 830  830  830  830  830 
Common shares
Additional paid-in capital 2,327  2,297  2,278  2,260  2,211 
Retained earnings 20,295  17,971  17,258  16,597  15,892 
Accumulated other comprehensive income (loss), net of deferred income tax (676) (1,453) (1,319) (1,297) (1,646)
Common shares held in treasury, at cost (4,424) (4,407) (4,407) (4,403) (4,378)
Total shareholders’ equity 18,353  15,239  14,641  13,988  12,910 
Total liabilities, noncontrolling interests and shareholders’ equity $ 58,906  $ 55,227  $ 53,856  $ 51,103  $ 47,990 
Common shares and common share equivalents outstanding, net of treasury shares 373.3  373.1  372.9  372.2  370.3 
Book value per common share (1) $ 46.94  $ 38.62  $ 37.04  $ 35.35  $ 32.62 
(1) Excludes the effects of stock options and restricted stock units outstanding.
5

Arch Capital Group Ltd. and Subsidiaries
Consolidated Statements of Changes in Shareholders’ Equity

(U.S. Dollars in millions) Three Months Ended Year Ended
December 31, September 30, June 30, March 31, December 31, December 31, December 31,
2023 2023 2023 2023 2022 2023 2022
Non-cumulative preferred shares              
Balance at beginning and end of period $ 830  $ 830  $ 830  $ 830  $ 830  $ 830  $ 830 
Common shares
Balance at beginning and end of period
Additional paid-in capital
Balance at beginning of period 2,297  2,278  2,260  2,211  2,187  2,211  2,085 
Amortization of share-based compensation 20  15  17  41  93  88 
All other 10  16  23  38 
Balance at end of period 2,327  2,297  2,278  2,260  2,211  2,327  2,211 
Retained earnings
Balance at beginning of period 17,971  17,258  16,597  15,892  15,043  15,892  14,456 
Net income 2,333  723  669  717  862  4,442  1,482 
Amounts attributable to noncontrolling interests —  (2) (3) (6)
Preferred share dividends (10) (10) (10) (10) (10) (40) (40)
Balance at end of period 20,295  17,971  17,258  16,597  15,892  20,295  15,892 
Accumulated other comprehensive income (loss), net of deferred income tax
Balance at beginning of period (1,453) (1,319) (1,297) (1,646) (1,892) (1,646) (65)
Change in unrealized appreciation (decline) in value of available-for-sale investments 721  (94) (24) 344  161  947  (1,525)
Change in foreign currency translation adjustments 56  (40) 85  23  (56)
Balance at end of period (676) (1,453) (1,319) (1,297) (1,646) (676) (1,646)
Common shares held in treasury, at cost
Balance at beginning of period (4,407) (4,407) (4,403) (4,378) (4,373) (4,378) (3,761)
Shares repurchased for treasury (17) —  (4) (25) (5) (46) (617)
Balance at end of period (4,424) (4,407) (4,407) (4,403) (4,378) (4,424) (4,378)
Total shareholders’ equity $ 18,353  $ 15,239  $ 14,641  $ 13,988  $ 12,910  $ 18,353  $ 12,910 

6

Arch Capital Group Ltd. and Subsidiaries
Consolidated Statements of Cash Flows
(U.S. Dollars in millions) Three Months Ended Year Ended
December 31, September 30, June 30, March 31, December 31, December 31, December 31,
2023 2023 2023 2023 2022 2023 2022
Operating Activities              
Net income (loss) $ 2,333  $ 723  $ 669  $ 717  $ 862  $ 4,442  $ 1,482 
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized (gains) losses (185) 257  127  (17) (91) 182  651 
Equity in net (income) or loss of investment funds accounted for using the equity method and other income or loss (111) (55) 17  (66) 47  (215) 154 
Amortization of intangible assets 24  24  24  23  26  95  106 
Share-based compensation 20  15  17  41  93  88 
Changes in:
Reserve for losses and loss adjustment expenses, net 534  584  417  603  336  2,138  1,890 
Unearned premiums, net (83) 107  463  541  274  1,028  1,399 
Premiums receivable 352  315  (777) (871) (14) (981) (1,110)
Deferred acquisition costs (45) (38) (77) (75) (132) (235) (374)
Reinsurance balances payable (237) 40  373  279  (164) 455  (36)
Deferred income tax assets, net (1,201) (18) 24  34  38  (1,161) (121)
Other items, net 264  16  (126) (246) (208) (92) (313)
Net cash provided by operating activities 1,665  1,970  1,151  963  982  5,749  3,816 
Investing Activities              
Purchases of fixed maturity investments (5,038) (4,184) (4,939) (3,901) (3,325) (18,062) (16,390)
Purchases of equity securities (280) (72) (96) (8) (10) (456) (797)
Purchases of other investments (1,059) (555) (291) (266) (450) (2,171) (1,720)
Proceeds from sales of fixed maturity investments 4,450  2,576  4,045  3,034  1,854  14,105  11,844 
Proceeds from sales of equity securities 72  55  86  75  14  288  1,554 
Proceeds from sales, redemptions and maturities of other investments 423  144  105  96  145  768  1,220 
Proceeds from redemptions and maturities of fixed maturity investments 192  221  188  180  137  781  715 
Net settlements of derivative instruments 119  (115) 32  14  37  50  (69)
Net (purchases) sales of short-term investments (373) 10  (125) (208) 619  (696) 467 
Purchases of fixed assets (15) (11) (15) (11) (13) (52) (50)
Other (23) (4) (1) (3) (23) 125 
Net cash provided by (used for) investing activities (1,532) (1,935) (1,005) (996) (995) (5,468) (3,101)
Financing Activities              
Purchases of common shares under share repurchase program —  —  —  —  —  —  (586)
Proceeds from common shares issued, net (7) 18  (18) (2)
Change in third party investment in redeemable noncontrolling interests —  —  (22) —  —  (22) — 
Other —  (2) (1) (2) (1) (5) (86)
Preferred dividends paid (10) (10) (10) (10) (10) (40) (40)
Net cash provided by (used for) financing activities (17) (7) (15) (30) (2) (69) (706)
Effects of exchange rate changes on foreign currency cash and restricted cash 27  (26) 30  13  (50)
Increase (decrease) in cash and restricted cash 143  138  (58) 15  225  (41)
Cash and restricted cash, beginning of period 1,355  1,353  1,215  1,273  1,258  1,273  1,314 
Cash and restricted cash, end of period $ 1,498  $ 1,355  $ 1,353  $ 1,215  $ 1,273  $ 1,498  $ 1,273 
Income taxes paid (received) $ 140  $ 54  $ 69  $ $ 53  $ 267  $ 255 
Interest paid $ 64  $ —  $ 63  $ —  $ 63  $ 127  $ 128 
7

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Overview

The Company’s Insurance, Reinsurance and Mortgage segments each have managers who are responsible for the overall profitability of their respective segments and who are directly accountable to the Company’s chief operating decision makers, the Chief Executive Officer, the Chief Financial Officer and Treasurer and the President and Chief Underwriting Officer. The chief operating decision makers do not assess performance, measure return on equity or make resource allocation decisions on a line of business basis. Management measures segment performance for its three underwriting segments based on underwriting income or loss. The Company does not manage its assets by underwriting segment and, accordingly, investment income is not allocated to each underwriting segment.
The Company determined its reportable operating segments using the management approach described in accounting guidance regarding disclosures about segments of an enterprise and related information. The accounting policies of the segments are the same as those used for the preparation of the Company’s consolidated financial statements. Intersegment business is allocated to the segment accountable for the underwriting results.
Insurance Segment
The insurance segment consists of the Company’s insurance underwriting units which offer specialty product lines on a worldwide basis. Product lines include:
•    Construction and national accounts: primary and excess casualty coverages for middle market and large construction accounts, a comprehensive range of products for middle market accounts in specialty industries and casualty solutions for large national accounts, including loss sensitive primary insurance programs (large deductible, self-insured retention and retrospectively rated programs).
•    Excess and surplus casualty: primary and excess casualty insurance coverages written on a non-admitted basis.
•    Professional lines: directors’ and officers’ liability, errors and omissions liability, employment practices liability, fiduciary liability, crime, professional indemnity and other financial related coverages for corporate, private equity, venture capital, real estate investment trust, limited partnership, financial institution and not-for-profit clients of all sizes, cyber insurance, and medical professional and general liability insurance coverages for the healthcare industry. The business is predominately written on a claims-made basis.
•    Programs: primarily targeting program managers with unique expertise and niche products offering some combination of general liability, commercial automobile, property, inland marine, umbrella and workers’ compensation.
•    Property, energy, marine and aviation: primary and excess general property insurance coverages, including catastrophe-exposed property coverage, for commercial clients. Coverages for marine include hull, cargo, war, specie and liability. Aviation, standalone terrorism and political risks are also offered. Coverage may be provided for operational and construction risk.
•    Travel, accident and health: specialty travel and accident and related insurance products for individual, group travelers, travel agents and suppliers, as well as accident and health, which provides accident, disability and medical plan insurance coverages for employer groups, medical plan members, students and other participant groups.
•Warranty and lenders solutions: collateral protection, debt cancellation and service contract reimbursement products to banks, credit unions, automotive dealerships and original equipment manufacturers and other specialty programs that pertain to automotive lending and leasing.
•    Other: includes alternative market risks (including captive insurance programs), excess workers’ compensation and employer’s liability insurance coverages for qualified self-insured groups, associations and trusts, and contract, commercial and transactional surety coverages.

Reinsurance Segment
The reinsurance segment consists of the Company’s reinsurance underwriting units which offer specialty product lines on a worldwide basis. Reinsurance agreements are typically offered on a proportional and/or excess of loss basis and provide coverage to ceding company clients for specific underlying written policies. Product lines include:
•Casualty: provides coverage on third party liability exposures including, among others, executive assurance, professional liability, excess and umbrella liability, excess motor and healthcare business, and workers’ compensation. Business is assumed primarily on a treaty basis, with some facultative coverages also offered.
•Marine and aviation: provides coverage for energy, hull, cargo, specie, liability and transit, and aviation business, including airline and general aviation risks. Business written may also include space business, which includes coverages for satellite assembly, launch and operation for commercial space programs.
•Other specialty: provides coverage for proportional motor reinsurance, whole account multi-line treaties, cyber, trade credit and surety, accident and health, workers’ compensation catastrophe, agriculture and political risk, among others.
•Property catastrophe: provides protection for most types of catastrophic losses, including hurricane, earthquake, flood, tornado, hail and fire, and for other perils on a case-by-case basis. Excess of loss coverages are triggered when aggregate losses and loss adjustment expense from a single occurrence of a covered peril exceed the retention specified in the contract.
•Property excluding property catastrophe: provides coverage for personal lines and/or commercial property exposures and principally covers buildings, structures, equipment and contents. The primary perils in this business include fire, explosion, collapse, riot, vandalism, wind, tornado, flood and earthquake. Business is assumed on either a treaty or facultative basis.
•Other: primarily includes life reinsurance business.
Mortgage Segment
The mortgage segment includes the Company’s underwriting units which offer mortgage insurance and reinsurance products on a worldwide basis. Underwriting units include:
•U.S. primary mortgage insurance: offers private mortgage insurance through Arch Mortgage Insurance Company and United Guaranty Residential Insurance Company (combined “Arch MI U.S.”), both approved eligible mortgage insurers by Fannie Mae and Freddie Mac. Arch MI U.S. also includes Arch Mortgage Guaranty Company, which is not a government sponsored enterprise (“GSE”) approved entity.
•U.S. credit risk transfer (“CRT”) and other: underwrites CRT transactions, which are predominantly with GSEs, and other U.S. reinsurance transactions.
•International mortgage insurance/reinsurance: underwrites mortgage insurance and reinsurance outside of the U.S.
Corporate Segment
The corporate segment results include net investment income, net realized gains or losses (which includes realized and unrealized changes in the fair value of equity securities and assets accounted for using the fair value option, realized and unrealized gains and losses on derivative instruments and changes in the allowance for credit losses on financial assets), equity in net income or loss of investment funds accounted for using the equity method, other income (loss), corporate expenses, transaction costs and other, amortization of intangible assets, interest expense, net foreign exchange gains or losses, income taxes items (which for the 2023 fourth quarter reflects the establishment of a net deferred tax asset related to the enactment of Bermuda’s new corporate income tax), income or loss from operating affiliates and items related to the Company’s non cumulative preferred shares.
8

Arch Capital Group Ltd. and Subsidiaries
Segment Information
(U.S. Dollars in millions) Three Months Ended
December 31, 2023
  Insurance Reinsurance Mortgage Total
Gross premiums written (1) $ 1,934  $ 1,971  $ 350  $ 4,251 
Premiums ceded (485) (414) (95) (990)
Net premiums written 1,449  1,557  255  3,261 
Change in unearned premiums —  63  20  83 
Net premiums earned 1,449  1,620  275  3,344 
Other underwriting income (loss) —  10 
Losses and loss adjustment expenses (846) (848) 57  (1,637)
Acquisition expenses (277) (365) (1) (643)
Other operating expenses (227) (85) (47) (359)
Underwriting income (loss) $ 99  $ 330  $ 286  715 
Net investment income 313 
Net realized gains (losses) 189 
Equity in net income (loss) of investment funds accounted for using the equity method 102 
Other income (loss) 17 
Corporate expenses (2) (27)
Transaction costs and other (2) (4)
Amortization of intangible assets (24)
Interest expense (34)
Net foreign exchange gains (losses) (59)
Income (loss) before income taxes and income (loss) from operating affiliates 1,188 
Income tax (expense) benefit 1,076 
Income (loss) from operating affiliates 69 
Net income (loss) 2,333 
Net (income) loss attributable to noncontrolling interests
Net income (loss) available to Arch 2,334 
Preferred dividends (10)
Net income (loss) available to Arch common shareholders $ 2,324 
Underwriting Ratios
Loss ratio 58.4  % 52.3  % (20.6) % 49.0  %
Acquisition expense ratio 19.1  % 22.5  % 0.2  % 19.2  %
Other operating expense ratio 15.6  % 5.2  % 17.1  % 10.7  %
Combined ratio 93.1  % 80.0  % (3.3) % 78.9  %
Net premiums written to gross premiums written 74.9  % 79.0  % 72.9  % 76.7  %
Total investable assets $ 34,589 
Total assets 58,906 
Total liabilities 40,551 

(1)    Certain amounts included in the gross premiums written of each segment are related to intersegment transactions and are included in the gross premiums written of each segment. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.
(2)    Certain expenses have been excluded from ‘corporate expenses’ and reflected in ‘Transaction costs and other.’ See ‘Comments on Regulation G’ for a further discussion of such items.
9

Arch Capital Group Ltd. and Subsidiaries
Segment Information
(U.S. Dollars in millions) Three Months Ended
December 31, 2022
  Insurance Reinsurance Mortgage Total
Gross premiums written (1) $ 1,644  $ 1,797  $ 356  $ 3,795 
Premiums ceded (427) (254) (81) (760)
Net premiums written 1,217  1,543  275  3,035 
Change in unearned premiums 27  (318) 17  (274)
Net premiums earned 1,244  1,225  292  2,761 
Other underwriting income (loss) —  (1)
Losses and loss adjustment expenses (730) (648) 137  (1,241)
Acquisition expenses (244) (244) (13) (501)
Other operating expenses (172) (69) (45) (286)
Underwriting income (loss) $ 98  $ 263  $ 373  734 
Net investment income 181 
Net realized gains (losses) 80 
Equity in net income (loss) of investment funds accounted for using the equity method 40 
Other income (loss)
Corporate expenses (2) (17)
Transaction costs and other (2) — 
Amortization of intangible assets (26)
Interest expense (32)
Net foreign exchange gains (losses) (81)
Income (loss) before income taxes and income (loss) from operating affiliates 887 
Income tax (expense) benefit (61)
Income (loss) from operating affiliates 36 
Net income (loss) 862 
Net (income) loss attributable to noncontrolling interests (3)
Net income (loss) available to Arch 859 
Preferred dividends (10)
Net income (loss) available to Arch common shareholders $ 849 
Underwriting Ratios
Loss ratio 58.7  % 52.9  % (46.9) % 45.0  %
Acquisition expense ratio 19.6  % 19.9  % 4.4  % 18.1  %
Other operating expense ratio 13.8  % 5.6  % 15.4  % 10.4  %
Combined ratio 92.1  % 78.4  % (27.1) % 73.5  %
Net premiums written to gross premiums written 74.0  % 85.9  % 77.2  % 80.0  %
Total investable assets $ 28,065 
Total assets 47,990 
Total liabilities 35,069 
(1)    Certain amounts included in the gross premiums written of each segment are related to intersegment transactions and are included in the gross premiums written of each segment. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.
(2)    Certain expenses have been excluded from ‘corporate expenses’ and reflected in ‘Transaction costs and other.’ See ‘Comments on Regulation G’ for a further discussion of such items.
10

Arch Capital Group Ltd. and Subsidiaries
Segment Information
(U.S. Dollars in millions) Year Ended
December 31, 2023
  Insurance Reinsurance Mortgage Total
Gross premiums written (1) $ 7,911  $ 9,113  $ 1,387  $ 18,403 
Premiums ceded (2,049) (2,559) (335) (4,935)
Net premiums written 5,862  6,554  1,052  13,468 
Change in unearned premiums (416) (718) 106  (1,028)
Net premiums earned 5,446  5,836  1,158  12,440 
Other underwriting income (loss) —  17  14  31 
Losses and loss adjustment expenses (3,122) (3,227) 103  (6,246)
Acquisition expenses (1,055) (1,240) (17) (2,312)
Other operating expenses (819) (288) (194) (1,301)
Underwriting income (loss) $ 450  $ 1,098  $ 1,064  2,612 
Net investment income 1,023 
Net realized gains (losses) (165)
Equity in net income (loss) of investment funds accounted for using the equity method 278 
Other income (loss) 27 
Corporate expenses (2) (96)
Transaction costs and other (2) (6)
Amortization of intangible assets (95)
Interest expense (133)
Net foreign exchange gains (losses) (60)
Income (loss) before income taxes and income (loss) from operating affiliates 3,385 
Income tax (expense) benefit 873 
Income (loss) from operating affiliates 184 
Net income (loss) 4,442 
Net (income) loss attributable to noncontrolling interests
Net income (loss) available to Arch 4,443 
Preferred dividends (40)
Net income (loss) available to Arch common shareholders $ 4,403 
Underwriting Ratios
Loss ratio 57.3  % 55.3  % (8.9) % 50.2  %
Acquisition expense ratio 19.4  % 21.2  % 1.4  % 18.6  %
Other operating expense ratio 15.0  % 4.9  % 16.8  % 10.5  %
Combined ratio 91.7  % 81.4  % 9.3  % 79.3  %
Net premiums written to gross premiums written 74.1  % 71.9  % 75.8  % 73.2  %
 
(1)    Certain amounts included in the gross premiums written of each segment are related to intersegment transactions and are included in the gross premiums written of each segment. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.
(2)    Certain expenses have been excluded from ‘corporate expenses’ and reflected in ‘Transaction costs and other.’ See ‘Comments on Regulation G’ for a further discussion of such items.
11

Arch Capital Group Ltd. and Subsidiaries
Segment Information
(U.S. Dollars in millions) Year Ended
December 31, 2022
  Insurance Reinsurance Mortgage Total
Gross premiums written (1) $ 6,931  $ 6,948  $ 1,455  $ 15,327 
Premiums ceded (1,910) (2,024) (322) (4,249)
Net premiums written 5,021  4,924  1,133  11,078 
Change in unearned premiums (461) (965) 27  (1,399)
Net premiums earned 4,560  3,959  1,160  9,679 
Other underwriting income (loss) —  13 
Losses and loss adjustment expenses (2,784) (2,568) 324  (5,028)
Acquisition expenses (887) (813) (40) (1,740)
Other operating expenses (665) (268) (195) (1,128)
Underwriting income (loss) $ 224  $ 315  $ 1,257  1,796 
Net investment income 496 
Net realized gains (losses) (663)
Equity in net income (loss) of investment funds accounted for using the equity method 115 
Other income (loss) (27)
Corporate expenses (2) (95)
Transaction costs and other (2) — 
Amortization of intangible assets (106)
Interest expense (131)
Net foreign exchange gains (losses) 102 
Income (loss) before income taxes and income (loss) from operating affiliates 1,487 
Income tax (expense) benefit (80)
Income (loss) from operating affiliates 75 
Net income (loss) 1,482 
Net (income) loss attributable to noncontrolling interests (6)
Net income (loss) available to Arch 1,476 
Preferred dividends (40)
Net income (loss) available to Arch common shareholders $ 1,436 
Underwriting Ratios
Loss ratio 61.0  % 64.9  % (28.0) % 51.9  %
Acquisition expense ratio 19.4  % 20.5  % 3.5  % 18.0  %
Other operating expense ratio 14.6  % 6.8  % 16.8  % 11.7  %
Combined ratio 95.0  % 92.2  % (7.7) % 81.6  %
Net premiums written to gross premiums written 72.4  % 70.9  % 77.9  % 72.3  %
 
(1)    Certain amounts included in the gross premiums written of each segment are related to intersegment transactions and are included in the gross premiums written of each segment. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.
(2)    Certain expenses have been excluded from ‘corporate expenses’ and reflected in ‘Transaction costs and other.’ See ‘Comments on Regulation G’ for a further discussion of such items.

12

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Insurance Segment
(U.S. Dollars in millions) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Gross premiums written $ 1,934  $ 2,043  $ 1,955  $ 1,979  $ 1,644  $ 7,911  $ 6,931 
Premiums ceded (485) (521) (501) (542) (427) (2,049) (1,910)
Net premiums written 1,449  1,522  1,454  1,437  1,217  5,862  5,021 
Change in unearned premiums —  (110) (126) (180) 27  (416) (461)
Net premiums earned 1,449  1,412  1,328  1,257  1,244  5,446  4,560 
Losses and loss adjustment expenses (846) (812) (761) (703) (730) (3,122) (2,784)
Acquisition expenses (277) (269) (264) (245) (244) (1,055) (887)
Other operating expenses (227) (202) (195) (195) (172) (819) (665)
Underwriting income (loss) $ 99  $ 129  $ 108  $ 114  $ 98  $ 450  $ 224 
Underwriting Ratios
Loss ratio 58.4  % 57.5  % 57.3  % 55.9  % 58.7  % 57.3  % 61.0  %
Acquisition expense ratio 19.1  % 19.1  % 19.9  % 19.5  % 19.6  % 19.4  % 19.4  %
Other operating expense ratio 15.6  % 14.3  % 14.7  % 15.5  % 13.8  % 15.0  % 14.6  %
Combined ratio 93.1  % 90.9  % 91.9  % 90.9  % 92.1  % 91.7  % 95.0  %
Catastrophic activity and prior year development:
Current accident year catastrophic events, net of reinsurance and reinstatement premiums 3.8  % 2.6  % 2.6  % 1.6  % 2.8  % 2.7  % 5.3  %
Net (favorable) adverse development in prior year loss reserves, net of related adjustments (0.5) % (0.8) % (0.5) % (0.5) % (0.3) % (0.6) % (0.2) %
Combined ratio excluding catastrophic activity and prior year development (1) 89.8  % 89.1  % 89.8  % 89.8  % 89.6  % 89.6  % 89.9  %
Net premiums written to gross premiums written 74.9  % 74.5  % 74.4  % 72.6  % 74.0  % 74.1  % 72.4  %
 
(1)See ‘Comments on Regulation G’ for further discussion.

13

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Insurance Segment
(U.S. Dollars in millions) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Net Premiums Written by Underwriting Unit
Professional lines $ 356  24.6  % $ 375  24.6  % $ 342  23.5  % $ 328  22.8  % $ 393  32.3  % $ 1,401  23.9  % $ 1,502  29.9  %
Property, energy, marine and aviation 282  19.5  % 342  22.5  % 320  22.0  % 275  19.1  % 190  15.6  % 1,219  20.8  % 878  17.5  %
Programs 189  13.0  % 202  13.3  % 210  14.4  % 141  9.8  % 130  10.7  % 742  12.7  % 611  12.2  %
Construction and national accounts 182  12.6  % 129  8.5  % 144  9.9  % 173  12.0  % 135  11.1  % 628  10.7  % 470  9.4  %
Excess and surplus casualty 144  9.9  % 130  8.5  % 135  9.3  % 131  9.1  % 129  10.6  % 540  9.2  % 461  9.2  %
Travel, accident and health 127  8.8  % 126  8.3  % 126  8.7  % 180  12.5  % 106  8.7  % 559  9.5  % 484  9.6  %
Warranty and lenders solutions 53  3.7  % 51  3.4  % 42  2.9  % 89  6.2  % 36  3.0  % 235  4.0  % 139  2.8  %
Other 116  8.0  % 167  11.0  % 135  9.3  % 120  8.4  % 98  8.1  % 538  9.2  % 476  9.5  %
Total $ 1,449  100.0  % $ 1,522  100.0  % $ 1,454  100.0  % $ 1,437  100.0  % $ 1,217  100.0  % $ 5,862  100.0  % $ 5,021  100.0  %
Net Premiums Written by Underwriting Location
United States $ 936  64.6  % $ 986  64.8  % $ 965  66.4  % $ 893  62.1  % $ 788  64.7  % $ 3,780  64.5  % $ 3,342  66.6  %
Europe 423  29.2  % 455  29.9  % 416  28.6  % 480  33.4  % 351  28.8  % 1,774  30.3  % 1,405  28.0  %
Other 90  6.2  % 81  5.3  % 73  5.0  % 64  4.5  % 78  6.4  % 308  5.3  % 274  5.5  %
Total $ 1,449  100.0  % $ 1,522  100.0  % $ 1,454  100.0  % $ 1,437  100.0  % $ 1,217  100.0  % $ 5,862  100.0  % $ 5,021  100.0  %
Net Premiums Earned by Underwriting Unit
Professional lines $ 352  24.3  % $ 363  25.7  % $ 355  26.7  % $ 349  27.8  % $ 368  29.6  % $ 1,419  26.1  % $ 1,314  28.8  %
Property, energy, marine and aviation 312  21.5  % 288  20.4  % 237  17.8  % 227  18.1  % 215  17.3  % 1,064  19.5  % 772  16.9  %
Programs 185  12.8  % 167  11.8  % 162  12.2  % 144  11.5  % 151  12.1  % 658  12.1  % 590  12.9  %
Construction and national accounts 155  10.7  % 147  10.4  % 133  10.0  % 126  10.0  % 126  10.1  % 561  10.3  % 432  9.5  %
Excess and surplus casualty 133  9.2  % 126  8.9  % 116  8.7  % 111  8.8  % 104  8.4  % 486  8.9  % 393  8.6  %
Travel, accident and health 134  9.2  % 148  10.5  % 147  11.1  % 128  10.2  % 124  10.0  % 557  10.2  % 492  10.8  %
Warranty and lenders solutions 43  3.0  % 43  3.0  % 49  3.7  % 50  4.0  % 36  2.9  % 185  3.4  % 128  2.8  %
Other 135  9.3  % 130  9.2  % 129  9.7  % 122  9.7  % 120  9.6  % 516  9.5  % 439  9.6  %
Total $ 1,449  100.0  % $ 1,412  100.0  % $ 1,328  100.0  % $ 1,257  100.0  % $ 1,244  100.0  % $ 5,446  100.0  % $ 4,560  100.0  %

14

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Reinsurance Segment
(U.S. Dollars in millions) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Gross premiums written $ 1,971  $ 2,138  $ 2,544  $ 2,460  $ 1,797  $ 9,113  $ 6,948 
Premiums ceded (414) (576) (835) (734) (254) (2,559) (2,024)
Net premiums written 1,557  1,562  1,709  1,726  1,543  6,554  4,924 
Change in unearned premiums 63  (19) (366) (396) (318) (718) (965)
Net premiums earned 1,620  1,543  1,343  1,330  1,225  5,836  3,959 
Other underwriting income (loss) (1) 17 
Losses and loss adjustment expenses (848) (870) (743) (766) (648) (3,227) (2,568)
Acquisition expenses (365) (304) (290) (281) (244) (1,240) (813)
Other operating expenses (85) (61) (68) (74) (69) (288) (268)
Underwriting income (loss) $ 330  $ 310  $ 245  $ 213  $ 263  $ 1,098  $ 315 
Underwriting Ratios
Loss ratio 52.3  % 56.4  % 55.3  % 57.6  % 52.9  % 55.3  % 64.9  %
Acquisition expense ratio 22.5  % 19.7  % 21.6  % 21.1  % 19.9  % 21.2  % 20.5  %
Other operating expense ratio 5.2  % 3.9  % 5.0  % 5.6  % 5.6  % 4.9  % 6.8  %
Combined ratio 80.0  % 80.0  % 81.9  % 84.3  % 78.4  % 81.4  % 92.2  %
Catastrophic activity and prior year development:
Current accident year catastrophic events, net of reinsurance and reinstatement premiums 5.1  % 9.3  % 6.3  % 4.4  % —  % 6.3  % 12.9  %
Net (favorable) adverse development in prior year loss reserves, net of related adjustments (1.3) % (2.8) % (1.8) % (3.4) % (4.5) % (2.3) % (4.3) %
Combined ratio excluding catastrophic activity and prior year development (1) 76.2  % 73.5  % 77.4  % 83.3  % 82.9  % 77.4  % 83.6  %
Net premiums written to gross premiums written 79.0  % 73.1  % 67.2  % 70.2  % 85.9  % 71.9  % 70.9  %
 
(1)See ‘Comments on Regulation G’ for further discussion.



15

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Reinsurance Segment
(U.S. Dollars in millions) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Net Premiums Written by Underwriting Unit
Other specialty $ 787  50.5  % $ 527  33.7  % $ 479  28.0  % $ 619  35.9  % $ 803  52.0  % $ 2,412  36.8  % $ 1,983  40.3  %
Property excluding property catastrophe 414  26.6  % 593  38.0  % 457  26.7  % 446  25.8  % 340  22.0  % 1,910  29.1  % 1,276  25.9  %
Casualty 215  13.8  % 273  17.5  % 231  13.5  % 283  16.4  % 264  17.1  % 1,002  15.3  % 973  19.8  %
Property catastrophe 63  4.0  % 76  4.9  % 469  27.4  % 257  14.9  % 55  3.6  % 865  13.2  % 416  8.4  %
Marine and aviation 42  2.7  % 54  3.5  % 55  3.2  % 99  5.7  % 51  3.3  % 250  3.8  % 167  3.4  %
Other 36  2.3  % 39  2.5  % 18  1.1  % 22  1.3  % 30  1.9  % 115  1.8  % 109  2.2  %
Total $ 1,557  100.0  % $ 1,562  100.0  % $ 1,709  100.0  % $ 1,726  100.0  % $ 1,543  100.0  % $ 6,554  100.0  % $ 4,924  100.0  %
Net Premiums Written by Underwriting Location
Bermuda $ 723  46.4  % $ 708  45.3  % $ 958  56.1  % $ 899  52.1  % $ 910  59.0  % $ 3,288  50.2  % $ 2,561  52.0  %
United States 466  29.9  % 461  29.5  % 408  23.9  % 421  24.4  % 377  24.4  % 1,756  26.8  % 1,247  25.3  %
Europe and other 368  23.6  % 393  25.2  % 343  20.1  % 406  23.5  % 256  16.6  % 1,510  23.0  % 1,116  22.7  %
Total $ 1,557  100.0  % $ 1,562  100.0  % $ 1,709  100.0  % $ 1,726  100.0  % $ 1,543  100.0  % $ 6,554  100.0  % $ 4,924  100.0  %
Net Premiums Earned by Underwriting Unit
Other specialty $ 598  36.9  % $ 505  32.7  % $ 483  36.0  % $ 511  38.4  % $ 532  43.4  % $ 2,097  35.9  % $ 1,378  34.8  %
Property excluding property catastrophe 484  29.9  % 449  29.1  % 358  26.7  % 354  26.6  % 310  25.3  % 1,645  28.2  % 1,090  27.5  %
Casualty 230  14.2  % 264  17.1  % 258  19.2  % 253  19.0  % 220  18.0  % 1,005  17.2  % 855  21.6  %
Property catastrophe 215  13.3  % 219  14.2  % 169  12.6  % 139  10.5  % 77  6.3  % 742  12.7  % 367  9.3  %
Marine and aviation 56  3.5  % 66  4.3  % 56  4.2  % 51  3.8  % 50  4.1  % 229  3.9  % 159  4.0  %
Other 37  2.3  % 40  2.6  % 19  1.4  % 22  1.7  % 36  2.9  % 118  2.0  % 110  2.8  %
Total $ 1,620  100.0  % $ 1,543  100.0  % $ 1,343  100.0  % $ 1,330  100.0  % $ 1,225  100.0  % $ 5,836  100.0  % $ 3,959  100.0  %
                    
16

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Mortgage Segment
(U.S. Dollars in millions) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
2023 2023 2023 2023 2022 2023 2022
Gross premiums written $ 350  $ 347  $ 347  $ 343  $ 356  $ 1,387  $ 1,455 
Premiums ceded (95) (76) (82) (82) (81) (335) (322)
Net premiums written 255  271  265  261  275  1,052  1,133 
Change in unearned premiums 20  22  29  35  17  106  27 
Net premiums earned 275  293  294  296  292  1,158  1,160 
Other underwriting income 14 
Losses and loss adjustment expenses 57  35  13  (2) 137  103  324 
Acquisition expenses (1) (2) (7) (7) (13) (17) (40)
Other operating expenses (47) (47) (50) (50) (45) (194) (195)
Underwriting income $ 286  $ 282  $ 253  $ 243  $ 373  $ 1,064  $ 1,257 
Underwriting Ratios
Loss ratio (20.6) % (12.1) % (4.5) % 0.6  % (46.9) % (8.9) % (28.0) %
Acquisition expense ratio 0.2  % 0.6  % 2.4  % 2.5  % 4.4  % 1.4  % 3.5  %
Other operating expense ratio 17.1  % 16.2  % 17.1  % 16.9  % 15.4  % 16.8  % 16.8  %
Combined ratio (3.3) % 4.7  % 15.0  % 20.0  % (27.1) % 9.3  % (7.7) %
Net (favorable) adverse development in prior year loss reserves, net of related adjustments (39.0) % (33.5) % (28.7) % (24.6) % (72.1) % (31.3) % (48.6) %
Combined ratio excluding prior year development (1) 35.7  % 38.2  % 43.7  % 44.6  % 45.0  % 40.6  % 40.9  %
Net premiums written to gross premiums written 72.9  % 78.1  % 76.4  % 76.1  % 77.2  % 75.8  % 77.9  %

(1)    See ‘Comments on Regulation G’ for further discussion.
17

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Mortgage Segment
(U.S. Dollars in millions) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Net Premiums Written by Underwriting Unit
U.S. primary mortgage insurance $ 175  68.6  % $ 190  70.1  % $ 186  70.2  % $ 186  71.3  % $ 187  68.0  % $ 737  70.1  % $ 769  67.9  %
U.S. credit risk transfer (CRT) and other 56  22.0  % 57  21.0  % 54  20.4  % 53  20.3  % 53  19.3  % 220  20.9  % 196  17.3  %
International mortgage insurance/reinsurance 24  9.4  % 24  8.9  % 25  9.4  % 22  8.4  % 35  12.7  % 95  9.0  % 168  14.8  %
Total $ 255  100.0  % $ 271  100.0  % $ 265  100.0  % $ 261  100.0  % $ 275  100.0  % $ 1,052  100.0  % $ 1,133  100.0  %
Net Premiums Written by Underwriting Location
United States $ 176  69.0  % $ 192  70.8  % $ 187  70.6  % $ 188  72.0  % $ 190  69.1  % $ 743  70.6  % $ 781  68.9  %
Other 79  31.0  % 79  29.2  % 78  29.4  % 73  28.0  % 85  30.9  % 309  29.4  % 352  31.1  %
Total $ 255  100.0  % $ 271  100.0  % $ 265  100.0  % $ 261  100.0  % $ 275  100.0  % $ 1,052  100.0  % $ 1,133  100.0  %
Net Premiums Earned by Underwriting Unit
U.S. primary mortgage insurance $ 177  64.4  % $ 192  65.5  % $ 194  66.0  % $ 196  66.2  % $ 197  67.5  % $ 759  65.5  % $ 804  69.3  %
U.S. credit risk transfer (CRT) and other 55  20.0  % 58  19.8  % 54  18.4  % 53  17.9  % 53  18.2  % 220  19.0  % 196  16.9  %
International mortgage insurance/reinsurance 43  15.6  % 43  14.7  % 46  15.6  % 47  15.9  % 42  14.4  % 179  15.5  % 160  13.8  %
Total $ 275  100.0  % $ 293  100.0  % $ 294  100.0  % $ 296  100.0  % $ 292  100.0  % $ 1,158  100.0  % $ 1,160  100.0  %

(U.S. Dollars in millions)
December 31, 2023 September 30, 2023 June 30, 2023 March 31, 2023 December 31, 2022
Insurance In Force (IIF) (1)
U.S. primary mortgage insurance $ 290,764  57.1  % $ 292,903  57.4  % $ 293,902  56.6  % $ 294,244  57.3  % $ 295,651  57.6  %
U.S. credit risk transfer (CRT) and other 149,098  29.3  % 152,453  29.9  % 154,983  29.9  % 147,731  28.8  % 145,087  28.3  %
International mortgage insurance/reinsurance 69,473  13.6  % 65,107  12.8  % 70,117  13.5  % 71,327  13.9  % 72,315  14.1  %
Total $ 509,335  100.0  % $ 510,463  100.0  % $ 519,002  100.0  % $ 513,302  100.0  % $ 513,053  100.0  %
Risk In Force (RIF) (2)
U.S. primary mortgage insurance $ 75,527  84.6  % $ 75,850  84.9  % $ 75,941  84.5  % $ 75,770  84.8  % $ 75,806  84.8  %
U.S. credit risk transfer and other 6,156  6.9  % 6,478  7.2  % 6,556  7.3  % 6,286  7.0  % 6,245  7.0  %
International mortgage insurance/reinsurance 7,562  8.5  % 7,034  7.9  % 7,385  8.2  % 7,333  8.2  % 7,369  8.2  %
Total $ 89,245  100.0  % $ 89,362  100.0  % $ 89,882  100.0  % $ 89,389  100.0  % $ 89,420  100.0  %

(1) The aggregate dollar amount of each insured mortgage loan’s current principal balance. Such amounts are shown before external reinsurance.
(2) The aggregate dollar amount of each insured mortgage loan’s current principal balance multiplied by the insurance coverage percentage specified in the policy for insurance policies issued and after contract limits and/or loss ratio caps for risk-sharing or reinsurance transactions. Such amounts are shown before external reinsurance.
18

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Mortgage Segment
The following table provides supplemental disclosures for the Company’s U.S. primary mortgage insurance operations:
(U.S. Dollars in millions)
December 31, 2023 September 30, 2023 June 30, 2023 March 31, 2023 December 31, 2022
Total RIF by credit quality (FICO score):
>=740 $ 46,796  62.0  % $ 46,990  62.0  % $ 46,978  61.9  % $ 46,788  61.8  % $ 46,812  61.8  %
680-739 24,990  33.1  % 25,055  33.0  % 25,083  33.0  % 25,016  33.0  % 24,945  32.9  %
620-679 3,497  4.6  % 3,554  4.7  % 3,622  4.8  % 3,699  4.9  % 3,772  5.0  %
<620 244  0.3  % 251  0.3  % 258  0.3  % 267  0.4  % 277  0.4  %
Total $ 75,527  100.0  % $ 75,850  100.0  % $ 75,941  100.0  % $ 75,770  100.0  % $ 75,806  100.0  %
Weighted average FICO score 748  748  748  748  750 
Total RIF by Loan-To-Value (LTV):
95.01% and above $ 7,067  9.4  % $ 7,113  9.4  % $ 7,151  9.4  % $ 7,215  9.5  % $ 7,289  9.6  %
90.01% to 95.00% 44,669  59.1  % 44,675  58.9  % 44,496  58.6  % 44,066  58.2  % 43,681  57.6  %
85.01% to 90.00% 20,490  27.1  % 20,565  27.1  % 20,627  27.2  % 20,665  27.3  % 20,851  27.5  %
85.00% and below 3,301  4.4  % 3,497  4.6  % 3,667  4.8  % 3,824  5.0  % 3,985  5.3  %
Total $ 75,527  100.0  % $ 75,850  100.0  % $ 75,941  100.0  % $ 75,770  100.0  % $ 75,806  100.0  %
Weighted average LTV 93.0  % 93.0  % 93.0  % 92.9  % 92.8  %
Total RIF by State:
California $ 6,162  8.2  % $ 6,235  8.2  % $ 6,317  8.3  % $ 6,369  8.4  % $ 6,341  8.4  %
Texas 5,972  7.9  % 6,081  8.0  % 6,159  8.1  % 6,179  8.2  % 6,151  8.1  %
North Carolina 3,248  4.3  % 3,258  4.3  % 3,239  4.3  % 3,191  4.2  % 3,160  4.2  %
Georgia 3,081  4.1  % 3,116  4.1  % 3,155  4.2  % 3,167  4.2  % 3,169  4.2  %
Minnesota 3,069  4.1  % 3,060  4.0  % 3,023  4.0  % 2,994  4.0  % 3,003  4.0  %
Florida 3,007  4.0  % 3,086  4.1  % 3,167  4.2  % 3,225  4.3  % 3,268  4.3  %
Illinois 2,986  4.0  % 2,994  3.9  % 3,010  4.0  % 3,054  4.0  % 3,081  4.1  %
Massachusetts 2,858  3.8  % 2,841  3.7  % 2,834  3.7  % 2,822  3.7  % 2,809  3.7  %
Michigan 2,773  3.7  % 2,722  3.6  % 2,661  3.5  % 2,626  3.5  % 2,618  3.5  %
Virginia 2,578  3.4  % 2,605  3.4  % 2,619  3.4  % 2,634  3.5  % 2,656  3.5  %
Other 39,793  52.7  % 39,852  52.5  % 39,757  52.4  % 39,509  52.1  % 39,550  52.2  %
Total $ 75,527  100.0  % $ 75,850  100.0  % $ 75,941  100.0  % $ 75,770  100.0  % $ 75,806  100.0  %
Weighted average coverage (end of period RIF divided by IIF) 26.0  % 25.9  % 25.8  % 25.8  % 25.6  %
U.S. mortgage insurance total RIF, net of reinsurance (1) $ 58,146  $ 56,946  $ 57,019  $ 57,001  $ 57,151 
Analysts’ persistency (2) 83.6  % 83.9  % 83.0  % 81.7  % 79.5  %
Risk-to-capital ratio -- Arch MI U.S. (3) 7.3:1 6.6:1 6.9:1 6.9:1 7.2:1
PMIER sufficiency ratio -- Arch MI U.S. (4) 213  % 245  % 245  % 248  % 236  %

(1) Total RIF for the U.S. mortgage insurance operations after external reinsurance.
(2) Represents the % of IIF at the beginning of a 12-mo. period that remained in force at the end of the period.
(3) Represents current (non-delinquent) RIF, net of reinsurance, divided by statutory capital (estimate for December 31, 2023).
(4) Calculated as available assets divided by required assets as defined within PMIERs (estimate for December 31, 2023). There was approximately $1.9 billion of excess available assets at December 31, 2023.
19

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Mortgage Segment
The following table provides supplemental disclosures for the Company’s U.S. primary mortgage insurance operations:
(U.S. Dollars in millions, except policy/loan/claim count) Three Months Ended
December 31, 2023 September 30, 2023 June 30, 2023 March 31, 2023 December 31, 2022
Total new insurance written (NIW) (1) $ 9,351  $ 11,494  $ 12,292  $ 10,394  $ 11,413 
Total NIW by credit quality (FICO score):
>=740 $ 6,058  64.8  % $ 7,646  66.5  % $ 8,151  66.3  % $ 6,672  64.2  % $ 7,155  62.7  %
680-739 2,990  32.0  % 3,520  30.6  % 3,832  31.2  % 3,490  33.6  % 3,992  35.0  %
620-679 301  3.2  % 326  2.8  % 308  2.5  % 229  2.2  % 265  2.3  %
<620 0.0  % 0.0  % 0.0  % 0.0  % 0.0  %
  Total $ 9,351  100.0  % $ 11,494  100.0  % $ 12,292  100.0  % $ 10,394  100.0  % $ 11,413  100.0  %
Total NIW by LTV:
95.01% and above $ 548  5.9  % $ 880  7.7  % $ 635  5.2  % $ 519  5.0  % $ 555  4.9  %
90.01% to 95.00% 5,095  54.5  % 6,306  54.9  % 6,855  55.8  % 6,043  58.1  % 6,725  58.9  %
85.01% to 90.00% 2,746  29.4  % 3,126  27.2  % 3,516  28.6  % 2,772  26.7  % 3,040  26.6  %
85.00% and below 962  10.3  % 1,182  10.3  % 1,286  10.5  % 1,060  10.2  % 1,093  9.6  %
  Total $ 9,351  100.0  % $ 11,494  100.0  % $ 12,292  100.0  % $ 10,394  100.0  % $ 11,413  100.0  %
Total NIW monthly vs. single:
Monthly $ 8,827  94.4  % $ 10,712  93.2  % $ 11,870  96.6  % $ 10,106  97.2  % $ 11,090  97.2  %
Single 524  5.6  % 782  6.8  % 422  3.4  % 288  2.8  % 323  2.8  %
  Total $ 9,351  100.0  % $ 11,494  100.0  % $ 12,292  100.0  % $ 10,394  100.0  % $ 11,413  100.0  %
Total NIW purchase vs. refinance:
Purchase $ 9,224  98.6  % $ 11,334  98.6  % $ 12,063  98.1  % $ 10,201  98.1  % $ 11,202  98.2  %
Refinance 127  1.4  % 160  1.4  % 229  1.9  % 193  1.9  % 211  1.8  %
  Total $ 9,351  100.0  % $ 11,494  100.0  % $ 12,292  100.0  % $ 10,394  100.0  % $ 11,413  100.0  %
Ending number of policies in force (PIF) (2) 1,117,480  1,129,351  1,138,681  1,147,081  1,160,219 
Rollforward of insured loans in default:
Beginning delinquent number of loans 18,644  18,286  18,975  20,567  20,214 
Plus: new notices 10,854  10,138  9,028  9,476  10,068 
Less: cures (9,801) (9,545) (9,505) (10,853) (9,564)
Less: paid claims (240) (235) (212) (215) (151)
Ending delinquent number of loans (2) 19,457  18,644  18,286  18,975  20,567 
Ending percentage of loans in default (2) 1.74  % 1.65  % 1.61  % 1.65  % 1.77  %
Losses:
Number of claims paid 240  235  212  215  151 
Total paid claims (in thousands) $ 7,401  $ 6,602  $ 5,715  $ 7,185  $ 4,547 
Average paid per claim (in thousands) $ 30.8  $ 28.1  $ 27.0  $ 33.4  $ 30.1 
Severity (3) 77.8  % 64.0  % 61.5  % 81.8  % 69.5  %
Average case reserve per default (in thousands) $ 17.7  $ 21.2  $ 23.1  $ 23.0  $ 21.1 
(1)    The original principal balance of all loans that received coverage during the period.
(2)    Includes first lien primary and pool policies.    
(3)    Represents total paid claims divided by RIF of loans for which claims were paid.
20

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Mortgage Segment
The following table provides supplemental disclosures for the Company’s U.S. primary mortgage insurance operations:
(U.S. Dollars in millions)
December 31, 2023 December 31, 2022
Loss Reserves, Net (1) Primary IIF (2) Primary RIF (3) Delinquency Rate Loss Reserves, Net (1) Primary IIF (2) Primary RIF (3) Delinquency Rate
% of Total Total % of Total Total % of Total % of Total Total % of Total Total % of Total
Policy year:
2013 and prior 29.5  % $ 10,859  3.7  % $ 2,738  3.6  % 6.55  % 36.1  % $ 12,931  4.4  % $ 3,222  4.3  % 7.07  %
2014 1.5  % 2,442  0.8  % 649  0.9  % 2.89  % 1.9  % 3,696  1.3  % 1,012  1.3  % 2.61  %
2015 2.0  % 4,691  1.6  % 1,244  1.6  % 1.98  % 2.4  % 6,236  2.1  % 1,680  2.2  % 2.08  %
2016 4.8  % 7,525  2.6  % 2,025  2.7  % 2.50  % 5.8  % 10,225  3.5  % 2,744  3.6  % 2.66  %
2017 7.0  % 7,600  2.6  % 2,023  2.7  % 3.13  % 9.1  % 9,508  3.2  % 2,521  3.3  % 3.06  %
2018 9.0  % 8,512  2.9  % 2,207  2.9  % 4.04  % 11.6  % 10,260  3.5  % 2,625  3.5  % 4.11  %
2019 9.1  % 15,767  5.4  % 4,074  5.4  % 2.40  % 10.2  % 19,096  6.5  % 4,840  6.4  % 2.36  %
2020 12.1  % 51,349  17.7  % 13,357  17.7  % 1.17  % 11.3  % 65,141  22.0  % 16,414  21.7  % 1.20  %
2021 14.8  % 76,667  26.4  % 19,812  26.2  % 1.12  % 9.9  % 89,621  30.3  % 22,740  30.0  % 0.95  %
2022 8.8  % 63,899  22.0  % 16,755  22.2  % 0.89  % 1.7  % 68,937  23.3  % 18,008  23.8  % 0.20  %
2023 1.3  % 41,453  14.3  % 10,643  14.1  % 0.26  %
Total 100.0  % $ 290,764  100.0  % $ 75,527  100.0  % 1.74  % 100.0  % $ 295,651  100.0  % $ 75,806  100.0  % 1.77  %

(1)    Total reserves for losses and loss adjustment expenses, net of recoverables, was $323.6 million at December 31, 2023, compared to $415.2 million at December 31, 2022.
(2)    The aggregate dollar amount of each insured mortgage loan’s current principal balance.
(3)    The aggregate dollar amount of each insured mortgage loan’s current principal balance multiplied by the insurance coverage percentage specified in the policy for insurance policies issued and after contract limits and/or loss ratio caps for risk-sharing transactions.


21

Arch Capital Group Ltd. and Subsidiaries
Segment Information - Consolidated

(U.S. Dollars in millions) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Gross premiums written $ 4,251  $ 4,527  $ 4,845  $ 4,780  $ 3,795  $ 18,403  $ 15,327 
Premiums ceded (990) (1,172) (1,417) (1,356) (760) (4,935) (4,249)
Net premiums written 3,261  3,355  3,428  3,424  3,035  13,468  11,078 
Change in unearned premiums 83  (107) (463) (541) (274) (1,028) (1,399)
Net premiums earned 3,344  3,248  2,965  2,883  2,761  12,440  9,679 
Other underwriting income (loss) 10  10  31  13 
Losses and loss adjustment expenses (1,637) (1,647) (1,491) (1,471) (1,241) (6,246) (5,028)
Acquisition expenses (643) (575) (561) (533) (501) (2,312) (1,740)
Other operating expenses (359) (310) (313) (319) (286) (1,301) (1,128)
Underwriting income (loss) (1) $ 715  $ 721  $ 606  $ 570  $ 734  $ 2,612  $ 1,796 
Underwriting Ratios
Loss ratio 49.0  % 50.7  % 50.3  % 51.0  % 45.0  % 50.2  % 51.9  %
Acquisition expense ratio 19.2  % 17.7  % 18.9  % 18.5  % 18.1  % 18.6  % 18.0  %
Other operating expense ratio 10.7  % 9.5  % 10.6  % 11.1  % 10.4  % 10.5  % 11.7  %
Combined ratio 78.9  % 77.9  % 79.8  % 80.6  % 73.5  % 79.3  % 81.6  %
Catastrophic activity and prior year development:
Current accident year catastrophic events, net of reinsurance and reinstatement premiums 4.1  % 5.6  % 4.0  % 2.7  % 1.3  % 4.1  % 7.8  %
Net (favorable) adverse development in prior year loss reserves, net of related adjustments (4.1) % (4.7) % (3.9) % (4.3) % (9.8) % (4.2) % (7.7) %
Combined ratio excluding catastrophic activity and prior year development (1) 78.9  % 77.0  % 79.7  % 82.2  % 82.0  % 79.4  % 81.5  %
Components of losses and loss adjustment expenses incurred
Paid losses and loss adjustment expenses $ 1,096  $ 1,058  $ 1,072  $ 867  $ 904  $ 4,093  $ 3,141 
Change in unpaid losses and loss adjustment expenses 541  589  419  604  337  2,153  1,887 
Total losses and loss adjustment expenses $ 1,637  $ 1,647  $ 1,491  $ 1,471  $ 1,241  $ 6,246  $ 5,028 
Net premiums written to gross premiums written 76.7  % 74.1  % 70.8  % 71.6  % 80.0  % 73.2  % 72.3  %
 
(1)See ‘Comments on Regulation G’ for further discussion.


22

Arch Capital Group Ltd. and Subsidiaries
Segment Information — Selected Information on Losses and Loss Adjustment Expenses

(U.S. Dollars in millions) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Estimated net (favorable) adverse development in prior year loss reserves, net of related adjustments
Net impact on underwriting results:
Insurance $ (7) $ (11) $ (7) $ (7) $ (4) $ (32) $ (11)
Reinsurance (21) (43) (25) (46) (55) (135) (167)
Mortgage (107) (98) (84) (73) (211) (362) (564)
Total $ (135) $ (152) $ (116) $ (126) $ (270) $ (529) $ (742)
Impact on losses and loss adjustment expenses:
Insurance $ (8) $ (10) $ (12) $ (12) $ (6) $ (42) $ (25)
Reinsurance (26) (44) (29) (53) (63) (152) (190)
Mortgage (101) (92) (80) (71) (208) (344) (554)
Total $ (135) $ (146) $ (121) $ (136) $ (277) $ (538) $ (769)
Impact on acquisition expenses:
Insurance $ $ (1) $ $ $ $ 10  $ 14 
Reinsurance 17  23 
Mortgage (6) (6) (4) (2) (3) (18) (10)
Total $ —  $ (6) $ $ 10  $ $ $ 27 
Impact on combined ratio:
Insurance (0.5) % (0.8) % (0.5) % (0.5) % (0.3) % (0.6) % (0.2) %
Reinsurance (1.3) % (2.8) % (1.8) % (3.4) % (4.5) % (2.3) % (4.3) %
Mortgage (39.0) % (33.5) % (28.7) % (24.6) % (72.1) % (31.3) % (48.6) %
Total (4.1) % (4.7) % (3.9) % (4.3) % (9.8) % (4.2) % (7.7) %
Impact on loss ratio:
Insurance (0.6) % (0.7) % (0.9) % (0.9) % (0.5) % (0.8) % (0.6) %
Reinsurance (1.6) % (2.8) % (2.2) % (4.0) % (5.2) % (2.6) % (4.8) %
Mortgage (36.6) % (31.4) % (27.2) % (23.9) % (71.1) % (29.7) % (47.8) %
Total (4.0) % (4.5) % (4.1) % (4.7) % (10.0) % (4.3) % (7.9) %
Impact on acquisition expense ratio:
Insurance 0.1  % (0.1) % 0.4  % 0.4  % 0.2  % 0.2  % 0.4  %
Reinsurance 0.3  % 0.0  % 0.4  % 0.6  % 0.7  % 0.3  % 0.5  %
Mortgage (2.4) % (2.1) % (1.5) % (0.7) % (1.0) % (1.6) % (0.8) %
Total (0.1) % (0.2) % 0.2  % 0.4  % 0.2  % 0.1  % 0.2  %
Estimated net losses incurred from current accident year catastrophic events (1)
Insurance $ 55  $ 37  $ 35  $ 20  $ 34  $ 147  $ 241 
Reinsurance 82  143  84  59  —  368  512 
Total $ 137  $ 180  $ 119  $ 79  $ 34  $ 515  $ 753 
Impact on combined ratio:
Insurance 3.8  % 2.6  % 2.6  % 1.6  % 2.8  % 2.7  % 5.3  %
Reinsurance 5.1  % 9.3  % 6.3  % 4.4  % 0.0  % 6.3  % 12.9  %
Total 4.1  % 5.6  % 4.0  % 2.7  % 1.3  % 4.1  % 7.8  %
(1)Equals estimated losses from catastrophic events occurring in the current accident year (e.g. natural catastrophes, man-made events, pandemic events), net of reinsurance and reinstatement premiums. As regards the natural catastrophe estimates included within, amounts shown for the insurance segment are for named catastrophic events only, while amounts shown for the reinsurance segment include (i) named events with over $5 million of losses incurred by its Bermuda and Europe operations and (ii) all catastrophe losses incurred by its U.S. operations. Amounts not applicable for the mortgage segment.
23

Arch Capital Group Ltd. and Subsidiaries
Investment Information — Investable Asset Summary and Investment Portfolio Metrics
The following table summarizes the Company’s investable assets and portfolio metrics:
(U.S. Dollars in millions) December 31, September 30, June 30, March 31, December 31,
2023 2023 2023 2023 2022
Investable assets:
Fixed maturities available for sale, at fair value $ 23,553  68.1  % $ 22,485  70.5  % $ 21,434  70.4  % $ 20,692  70.4  % $ 19,683  70.1  %
Fixed maturities—fair value option (1) 683  2.0  % 644  2.0  % 659  2.2  % 631  2.1  % 554  2.0  %
Total fixed maturities 24,236  70.1  % 23,129  72.5  % 22,093  72.6  % 21,323  72.5  % 20,237  72.1  %
Equity securities, at fair value 1,186  3.4  % 894  2.8  % 911  3.0  % 859  2.9  % 860  3.1  %
Equity securities—fair value option (1) 0.0  % 0.0  % 0.0  % 0.0  % 14  0.0  %
Total equity securities 1,193  3.4  % 901  2.8  % 918  3.0  % 866  2.9  % 874  3.1  %
Other investments—fair value option (1) 1,777  5.1  % 1,404  4.4  % 1,172  3.9  % 1,121  3.8  % 1,043  3.7  %
Investments accounted for using the equity method (2) 4,566  13.2  % 4,251  13.3  % 4,073  13.4  % 3,896  13.3  % 3,774  13.4  %
Short-term investments available for sale, at fair value 2,063  6.0  % 1,682  5.3  % 1,702  5.6  % 1,553  5.3  % 1,332  4.7  %
Short-term investments—fair value option (1) 21  0.1  % 13  0.0  % 0.0  % 17  0.1  % 33  0.1  %
Total short-term investments 2,084  6.0  % 1,695  5.3  % 1,710  5.6  % 1,570  5.3  % 1,365  4.9  %
Cash 917  2.7  % 859  2.7  % 904  3.0  % 803  2.7  % 855  3.0  %
Securities transactions entered into but not settled at the balance sheet date (184) (0.5) % (358) (1.1) % (429) (1.4) % (178) (0.6) % (83) (0.3) %
Total investable assets held by the Company $ 34,589  100.0  % $ 31,881  100.0  % $ 30,441  100.0  % $ 29,401  100.0  % $ 28,065  100.0  %
Average effective duration (in years) 2.91  2.97  3.03  2.89  2.89   
Average S&P/Moody’s credit ratings (3)  AA-/Aa3  AA-/Aa3  AA-/Aa3  AA-/Aa3  AA-/Aa3  
(1)     Included in “other investments” on the balance sheet.
(2)    Changes in the carrying value of investment funds accounted for using the equity method are recorded as “equity in net income (loss) of investment funds accounted for using the equity method” rather than as                 an unrealized gain or loss component of accumulated other comprehensive income.
(3)    Average credit ratings on the Company’s investment portfolio on securities with ratings assigned by Standard & Poor’s (“S&P”) and Moody’s Investors Service (“Moody’s”).
24

Arch Capital Group Ltd. and Subsidiaries
Investment Information — Composition of Net Investment Income, Yield and Total Return

The following table summarizes the Company’s net investment income, yield and total return:
(U.S. Dollars in millions, except per share data) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Composition of net investment income:              
Fixed maturities $ 272  $ 243  $ 214  $ 188  $ 158  $ 917  $ 469 
Short-term investments 20  19  15  14  13  68  29 
Equity securities (dividends) 22  22 
Other (1) 33  22  25  13  18  93  47 
Gross investment income 332  289  260  219  195  1,100  567 
Investment expenses (19) (20) (18) (20) (14) (77) (71)
Net investment income $ 313  $ 269  $ 242  $ 199  $ 181  $ 1,023  $ 496 
Per share $ 0.82  $ 0.71  $ 0.64  $ 0.53  $ 0.48  $ 2.70  $ 1.31 
Equity in net income (loss) of investment funds accounted for using the equity method 102  59  69  48  40  278  115 
Per share $ 0.27  $ 0.16  $ 0.18  $ 0.13  $ 0.11  $ 0.73  $ 0.30 
Investment income yield, at amortized cost (2):
Pre-tax 4.11  % 3.68  % 3.50  % 3.03  % 2.80  % 3.53  % 1.99  %
After-tax 3.59  % 3.18  % 3.05  % 2.58  % 2.41  % 3.06  % 1.70  %
Total return on investments (3) 4.76  % (0.40) % 0.56  % 2.54  % 2.60  % 7.57  % (6.45) %
(1)Amounts include dividends and other distributions on investment funds, term loan investments, funds held balances, cash balances and other.
(2)Presented on an annualized basis and excluding the impact of investments for which returns are not included within investment income, such as investments accounted for using the equity method and certain equities.
(3)Total return on investments includes investment income, equity in net income or loss of investment funds accounted for using the equity method, net realized gains and losses (excluding changes in allowance for credit losses on non-investment related financial assets) and the change in unrealized gains or losses and is calculated on a pre-tax basis and before investment expenses. See ‘Comments on Regulation G’ for a further discussion of the presentation of total return on investments.

25

Arch Capital Group Ltd. and Subsidiaries
Investment Information — Composition of Fixed Maturities
 
The following table summarizes the Company’s fixed maturities:
(U.S. Dollars in millions)
Fair
Value
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Net
Unrealized
Gains (Losses)
Allowance
for Credit Losses
Amortized
Cost
Fair Value /
Amortized Cost
Fair Value
% of Total
At December 31, 2023
Corporates $ 11,517  $ 157  $ (464) $ (307) $ (20) $ 11,844  97.2  % 47.5  %
U.S. government and government agencies 5,827  63  (86) (23) —  5,850  99.6  % 24.0  %
Asset-backed securities 2,252  11  (55) (44) (5) 2,301  97.9  % 9.3  %
Non-U.S. government securities 2,068  33  (100) (67) (1) 2,136  96.8  % 8.5  %
Commercial mortgage-backed securities 1,213  (34) (31) (2) 1,246  97.4  % 5.0  %
Residential mortgage-backed securities 1,103  (66) (59) —  1,162  94.9  % 4.6  %
Municipal bonds 256  (20) (19) —  275  93.1  % 1.1  %
Total $ 24,236  $ 275  $ (825) $ (550) $ (28) $ 24,814  97.7  % 100.0  %
At December 31, 2022
Corporates $ 8,563  $ 55  $ (781) $ (726) $ (30) $ 9,319  91.9  % 42.3  %
U.S. government and government agencies 5,167  15  (343) (328) —  5,495  94.0  % 25.5  %
Asset-backed securities 1,929  (107) (106) (6) 2,041  94.5  % 9.5  %
Non-U.S. government securities 2,317  (238) (229) (2) 2,548  90.9  % 11.4  %
Commercial mortgage-backed securities 1,047  (58) (57) (3) 1,107  94.6  % 5.2  %
Residential mortgage-backed securities 795  (87) (82) —  877  90.6  % 3.9  %
Municipal bonds 419  (33) (30) —  449  93.3  % 2.1  %
Total $ 20,237  $ 89  $ (1,647) $ (1,558) $ (41) $ 21,836  92.7  % 100.0  %



26

Arch Capital Group Ltd. and Subsidiaries
Investment Information — Credit Quality Distribution and Maturity Profile

The following table summarizes the credit quality distribution and maturity profile of the Company’s fixed maturities:
(U.S. Dollars in millions) December 31, September 30, June 30, March 31, December 31,
2023 2023 2023 2023 2022
Credit quality distribution of total fixed maturities (1):
U.S. government and government agencies (2) $ 6,493  26.8  % $ 6,359  27.5  % $ 5,282  23.9  % $ 5,274  24.7  % $ 5,831  28.8  %
AAA 4,305  17.8  % 4,164  18.0  % 3,985  18.0  % 3,826  17.9  % 3,617  17.9  %
AA 2,165  8.9  % 2,061  8.9  % 2,285  10.3  % 2,136  10.0  % 2,214  10.9  %
A 4,629  19.1  % 4,523  19.6  % 4,810  21.8  % 4,540  21.3  % 3,993  19.7  %
BBB 5,058  20.9  % 4,390  19.0  % 4,165  18.9  % 3,875  18.2  % 3,324  16.4  %
BB 698  2.9  % 773  3.3  % 770  3.5  % 711  3.3  % 560  2.8  %
B 389  1.6  % 352  1.5  % 366  1.7  % 384  1.8  % 377  1.9  %
Lower than B 15  0.1  % 16  0.1  % 16  0.1  % 18  0.1  % 12  0.1  %
Not rated 484  2.0  % 491  2.1  % 414  1.9  % 559  2.6  % 309  1.5  %
Total fixed maturities, at fair value $ 24,236  100.0  % $ 23,129  100.0  % $ 22,093  100.0  % $ 21,323  100.0  % $ 20,237  100.0  %
Maturity profile of total fixed maturities:
Due in one year or less $ 516  2.1  % $ 706  3.1  % $ 594  2.7  % $ 505  2.4  % $ 534  2.6  %
Due after one year through five years 13,279  54.8  % 13,272  57.4  % 12,399  56.1  % 11,739  55.1  % 11,292  55.8  %
Due after five years through ten years 5,420  22.4  % 4,679  20.2  % 4,630  21.0  % 4,616  21.6  % 4,156  20.5  %
Due after 10 years 453  1.9  % 61  0.3  % 123  0.6  % 242  1.1  % 484  2.4  %
19,668  81.2  % 18,718  80.9  % 17,746  80.3  % 17,102  80.2  % 16,466  81.4  %
Residential mortgage-backed securities 1,103  4.6  % 965  4.2  % 860  3.9  % 823  3.9  % 795  3.9  %
Commercial mortgage-backed securities 1,213  5.0  % 1,102  4.8  % 1,082  4.9  % 1,035  4.9  % 1,047  5.2  %
Asset-backed securities 2,252  9.3  % 2,344  10.1  % 2,405  10.9  % 2,363  11.1  % 1,929  9.5  %
Total fixed maturities, at fair value $ 24,236  100.0  % $ 23,129  100.0  % $ 22,093  100.0  % $ 21,323  100.0  % $ 20,237  100.0  %

(1)     For individual fixed maturities, S&P ratings are used. In the absence of an S&P rating, ratings from Moody’s are used, followed by ratings from Fitch Ratings.
(2)     Includes U.S. government-sponsored agency mortgage backed securities and agency commercial mortgage backed securities.


27

Arch Capital Group Ltd. and Subsidiaries
Investment Information — Analysis of Corporate Exposures

The following table summarizes the Company’s corporate bonds by sector:
(U.S. Dollars in millions) December 31, September 30, June 30, March 31, December 31,
2023 2023 2023 2023 2022
Sector:
Industrials $ 5,525  48.0  % $ 4,918  46.0  % $ 4,988  47.0  % $ 4,672  46.6  % $ 3,463  40.4  %
Financials 4,523  39.3  % 4,326  40.5  % 4,334  40.8  % 4,329  43.2  % 4,246  49.6  %
Utilities 1,039  9.0  % 962  9.0  % 927  8.7  % 798  8.0  % 546  6.4  %
All other (1) 430  3.7  % 478  4.5  % 367  3.5  % 223  2.2  % 308  3.6  %
Total $ 11,517  100.0  % $ 10,684  100.0  % $ 10,616  100.0  % $ 10,022  100.0  % $ 8,563  100.0  %
Credit quality distribution (2):
AAA $ 295  2.6  % $ 297  2.8  % $ 227  2.1  % $ 176  1.8  % $ 178  2.1  %
AA 1,038  9.0  % 938  8.8  % 913  8.6  % 869  8.7  % 767  9.0  %
A 4,043  35.1  % 3,936  36.8  % 4,197  39.5  % 3,994  39.9  % 3,266  38.1  %
BBB 4,744  41.2  % 4,118  38.5  % 3,885  36.6  % 3,628  36.2  % 3,096  36.2  %
BB 634  5.5  % 715  6.7  % 714  6.7  % 658  6.6  % 541  6.3  %
B 389  3.4  % 351  3.3  % 365  3.4  % 383  3.8  % 371  4.3  %
Lower than B 15  0.1  % 16  0.1  % 16  0.2  % 18  0.2  % 12  0.1  %
Not rated 359  3.1  % 313  2.9  % 299  2.8  % 296  3.0  % 332  3.9  %
Total $ 11,517  100.0  % $ 10,684  100.0  % $ 10,616  100.0  % $ 10,022  100.0  % $ 8,563  100.0  %

(1)    Includes sovereign securities, supranational securities and other.
(2)    For individual fixed maturities, S&P ratings are used. In the absence of an S&P rating, ratings from Moody’s are used, followed by ratings from Fitch Ratings.

The following table summarizes the Company’s top ten exposures to fixed income corporate issuers by fair value at December 31, 2023:
(U.S. Dollars in millions) Fair
Value
% of Asset Class % of Investable Assets Credit Quality (1)
Issuer:
Bank of America Corporation $ 383  3.3  % 1.1  % A-/A1
JPMorgan Chase & Co. 361  3.1  % 1.0  % A-/A1
Morgan Stanley 338  2.9  % 1.0  % A-/A1
The Goldman Sachs Group, Inc. 230  2.0  % 0.7  % BBB+/A2
Citigroup Inc. 229  2.0  % 0.7  % BBB+/A3
Wells Fargo & Company 171  1.5  % 0.5  % BBB+/A1
Blue Owl Capital Inc. 165  1.4  % 0.5  % BBB-/Baa3
Roche Holding AG 147  1.3  % 0.4  % AA/Aa2
Blackstone Inc. 138  1.2  % 0.4  % BBB/Baa3
UBS Group AG 128  1.1  % 0.4  % A/A2
Total $ 2,290  19.9  % 6.6  %
 
(1)    Average credit ratings assigned by S&P and Moody’s, respectively.

28

Arch Capital Group Ltd. and Subsidiaries
Investment Information — Structured Securities

The following table provides the composition of the Company’s structured securities:
(U.S. Dollars in millions) Agencies AAA AA A BBB Non-Investment Grade Total
At December 31, 2023            
Residential mortgage-backed securities $ 658  $ 416  $ 29  $ —  $ —  $ —  $ 1,103 
Commercial mortgage-backed securities 757  198  45  126  80  1,213 
Asset-backed securities —  1,302  231  440  170  109  2,252 
Total $ 665  $ 2,475  $ 458  $ 485  $ 296  $ 189  $ 4,568 
At December 31, 2022
Residential mortgage-backed securities $ 645  $ 106  $ 28  $ —  $ —  $ 16  $ 795 
Commercial mortgage-backed securities 18  682  152  32  82  81  1,047 
Asset-backed securities —  1,135  184  350  119  141  1,929 
Total $ 663  $ 1,923  $ 364  $ 382  $ 201  $ 238  $ 3,771 
29

Arch Capital Group Ltd. and Subsidiaries
Comments on Regulation G
Throughout this financial supplement, the Company presents its operations in the way it believes will be the most meaningful and useful to investors, analysts, rating agencies and others who use the Company’s financial information in evaluating the performance of the Company. This presentation includes the use of after-tax operating income available to Arch common shareholders, which is defined as net income available to Arch common shareholders, excluding net realized gains or losses (which includes changes in the allowance for credit losses on financial assets and net impairment losses recognized in earnings), equity in net income or loss of investment funds accounted for using the equity method, net foreign exchange gains or losses, transaction costs and other, net of income taxes (which for the 2023 fourth quarter includes a one-time deferred tax benefit related to the enactment of Bermuda’s new corporate income tax), and the use of annualized operating return on average common equity. The presentation of after-tax operating income available to Arch common shareholders and annualized operating return on average common equity are non-GAAP financial measures as defined in Regulation G. The reconciliation of such measures to net income available to Arch common shareholders and annualized net income return on average common equity (the most directly comparable GAAP financial measures) in accordance with Regulation G is included on the following page.
The Company believes that net realized gains or losses, equity in net income or loss of investment funds accounted for using the equity method, net foreign exchange gains or losses and transaction costs and other, in any particular period are not indicative of the performance of, or trends in, the Company’s business. Although net realized gains or losses, equity in net income or loss of investment funds accounted for using the equity method and net foreign exchange gains or losses are an integral part of the Company’s operations, the decision to realize these items are independent of the insurance underwriting process and result, in large part, from general economic and financial market conditions. Furthermore, certain users of the Company’s financial information believe that, for many companies, the timing of the realization of investment gains or losses is largely opportunistic. In addition, changes in the allowance for credit losses and net impairment losses recognized in earnings on the Company’s investments represent other-than-temporary declines in expected recovery values on securities without actual realization.
The use of the equity method on certain of the Company’s investments in certain funds that invest in fixed maturity securities is driven by the ownership structure of such funds (either limited partnerships or limited liability companies). In applying the equity method, these investments are initially recorded at cost and are subsequently adjusted based on the Company’s proportionate share of the net income or loss of the funds (which include changes in the fair value of the underlying securities in the funds). This method of accounting is different from the way the Company accounts for its other fixed maturity securities and the timing of the recognition of equity in net income or loss of investment funds accounted for using the equity method may differ from gains or losses in the future upon sale or maturity of such investments.
Transaction costs and other include advisory, financing, legal, severance, incentive compensation and other transaction costs related to acquisitions. The Company believes that transaction costs and other, due to their non-recurring nature, are not indicative of the performance of, or trends in, the Company’s business performance.
In the 2023 fourth quarter, the Company established a net deferred tax benefit of $1.18 billion consistent with the transition provisions specified in the Bermuda Corporate Income Tax Act of 2023. Due to the non-recurring nature of this one-time item, the Company believes that excluding this item from after-tax operating income or loss available to common shareholders provides the user with a better evaluation of the Company’s ongoing business performance.
The Company believes that showing net income available to Arch common shareholders exclusive of the items referred to above reflects the underlying fundamentals of the Company’s business since the Company evaluates the performance of and manages its business to produce an underwriting profit. In addition to presenting net income available to Arch common shareholders, the Company believes that this presentation enables investors and other users of the Company’s financial information to analyze the Company’s performance in a manner similar to how the Company’s management analyzes performance. The Company also believes that this measure follows industry practice and, therefore, allows the users of the Company’s financial information to compare the Company’s performance with its industry peer group. The Company believes that the equity analysts and certain rating agencies that follow the Company and the insurance industry as a whole generally exclude these items from their analyses for the same reasons.
The Company’s segment information includes the presentation of consolidated underwriting income or loss and a subtotal of underwriting income or loss. Such measures represent the pre-tax profitability of the Company’s underwriting operations and include net premiums earned plus other underwriting income, less losses and loss adjustment expenses, acquisition expenses and other operating expenses. Other operating expenses include those operating expenses that are incremental and/or directly attributable to the Company’s individual underwriting operations. Underwriting income or loss does not incorporate items included in the Company’s corporate segment. While these measures are presented in the Segment Information footnote to the Company’s Consolidated Financial Statements, they are considered non-GAAP financial measures when presented elsewhere on a consolidated basis. The reconciliations of underwriting income or loss to income before income taxes (the most directly comparable GAAP financial measure) on a consolidated basis, in accordance with Regulation G, is shown on pages 9 to 12.
In addition, the Company’s segment information includes the use of a combined ratio excluding catastrophic activity and prior year development, for the insurance and reinsurance segments, and a combined ratio excluding prior year development, for the mortgage segment. These ratios are non-GAAP financial measures as defined in Regulation G. The reconciliation of such measures to the combined ratio (the most directly comparable GAAP financial measure) in accordance with Regulation G are shown on the individual segment pages. The Company’s management utilizes the adjusted combined ratios excluding current accident year catastrophic events and favorable or adverse development in prior year loss reserves in its analysis of the underwriting performance of each of its underwriting segments.
Total return on investments includes investment income, equity in net income or loss of investment funds accounted for using the equity method, net realized gains and losses (excluding changes in the allowance for credit losses on non-investment related financial assets) and the change in unrealized gains and losses generated by the Company’s investment portfolio. Total return is calculated on a pre-tax basis and before investment expenses, and reflects the effect of financial market conditions along with foreign currency fluctuations. Management uses total return on investments as a key measure of the return generated to Arch common shareholders, and compares the return generated by the Company’s investment portfolio against benchmark returns during the periods presented.
30

Arch Capital Group Ltd. and Subsidiaries
Operating Income Reconciliation and Annualized Operating Return on Average Common Equity
The following table summarizes the Company’s consolidated financial data, including a reconciliation of net income (loss) available to Arch common shareholders to after-tax operating income (loss) available to Arch common shareholders and related diluted per share results:
(U.S. Dollars and shares in millions, except per share data) Three Months Ended Year Ended
  December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Net income available to Arch common shareholders $ 2,324  $ 713  $ 661  $ 705  $ 849  $ 4,403  $ 1,436 
Net realized (gains) losses (1) (189) 248  123  (17) (80) 165  663 
Equity in net (income) loss of investment funds accounted for using the equity method (102) (59) (69) (48) (40) (278) (115)
Net foreign exchange (gains) losses 60  (22) 18  81  62  (102)
Transaction costs and other (1) —  — 
Income tax expense (benefit) (2) (1,152) (5) (3) (4) (1,157) (42)
After-tax operating income available to Arch common shareholders $ 945  $ 876  $ 726  $ 654  $ 806  $ 3,201  $ 1,840 
Diluted per common share results:
Net income available to Arch common shareholders $ 6.12  $ 1.88  $ 1.75  $ 1.87  $ 2.26  $ 11.62  $ 3.80 
Net realized (gains) losses (1) (0.50) 0.65  0.33  (0.05) (0.22) 0.44  1.76 
Equity in net (income) loss of investment funds accounted for using the equity method (0.27) (0.16) (0.18) (0.13) (0.11) (0.73) (0.31)
Net foreign exchange (gains) losses 0.16  (0.05) 0.01  0.05  0.22  0.16  (0.27)
Transaction costs and other 0.01  0.00  0.00  0.00  0.00  0.01  0.00 
Income tax expense (benefit) (2) (3.03) (0.01) 0.01  (0.01) (0.01) (3.05) (0.11)
After-tax operating income available to Arch common shareholders $ 2.49  $ 2.31  $ 1.92  $ 1.73  $ 2.14  $ 8.45  $ 4.87 
Weighted average common shares and common share equivalents outstanding - diluted 379.8  379.4  378.4  377.6  375.9  378.8  377.6 
Beginning common shareholders’ equity $ 14,409  $ 13,811  $ 13,158  $ 12,080  $ 10,966  $ 12,080  $ 12,716 
Ending common shareholders’ equity 17,523  14,409  13,811  13,158  12,080  17,523  12,080 
Average common shareholders’ equity $ 15,966  $ 14,110  $ 13,485  $ 12,619  $ 11,523  $ 14,802  $ 12,398 
Annualized net income return on average common equity 58.2  % 20.2  % 19.6  % 22.3  % 29.5  % 29.7  % 11.6  %
Annualized operating return on average common equity 23.7  % 24.8  % 21.5  % 20.7  % 28.0  % 21.6  % 14.8  %

(1)    Net realized gains or losses include realized and unrealized changes in the fair value of equity securities and assets accounted for using the fair value option, realized and unrealized gains and losses on derivative instruments and changes in the allowance for credit losses on financial assets.
(2)    Income tax expense (benefit) on net realized gains or losses, equity in net income (loss) of investment funds accounted for using the equity method, net foreign exchange gains or losses and transaction costs and other reflects the relative mix reported by jurisdiction and the varying tax rates in each jurisdiction. The 2023 fourth quarter results were impacted by the establishment of a net deferred tax asset of $1.18 billion, or $3.10 per share, related to the enactment of Bermuda’s new corporate income tax.


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Arch Capital Group Ltd. and Subsidiaries
Operating Income and Effective Tax Rate Calculations
The following table provides a reconciliation of income (loss) before income taxes to after-tax operating income (loss) available to Arch common shareholders and an analysis of the effective tax rate on pre-tax operating income (loss) available to Arch common shareholders:
(U.S. Dollars in millions) Three Months Ended Year Ended
December 31, September 30, June 30, March 31, December 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023 2022
Arch Operating Income Components:
Income (loss) before income taxes and income (loss) from operating affiliates $ 1,188  $ 741  $ 714  $ 742  $ 887  $ 3,385  $ 1,487 
Net realized (gains) losses (189) 248  123  (17) (80) 165  663 
Equity in net (income) loss of investment funds accounted for using the equity method (102) (59) (69) (48) (40) (278) (115)
Net foreign exchange (gains) losses 60  (22) 16  79  62  (106)
Transaction costs and other (1) —  — 
Income (loss) from operating affiliates
69  54  22  39  36  184  75 
Pre-tax operating income available to Arch (b) 1,030  963  800  731  882  3,524  2,004 
Income tax (expense) benefit (a) (75) (77) (64) (67) (66) (283) (124)
After-tax operating income available to Arch 955  886  736  664  816  3,241  1,880 
Preferred dividends (10) (10) (10) (10) (10) (40) (40)
After-tax operating income available to Arch common shareholders $ 945  $ 876  $ 726  $ 654  $ 806  $ 3,201  $ 1,840 
Effective tax rate on pre-tax operating income (loss) available to Arch (a)/(b) 7.3  % 8.0  % 8.0  % 9.2  % 7.5  % 8.0  % 6.2  %

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Arch Capital Group Ltd. and Subsidiaries
Capital Structure and Share Repurchase Activity
The following table provides an analysis of the Company’s capital structure:
(U.S. Dollars and shares in millions, except per share data) December 31, September 30, June 30, March 31, December 31,
2023 2023 2023 2023 2022
Debt:
Arch senior notes, due May 1, 2034 ($300 principal, 7.35%) $ 300  $ 300  $ 300  $ 300  $ 300 
Arch-U.S. senior notes, due Nov. 1, 2043 ($500 principal, 5.144%) (1) 500  500  500  500  500 
Arch Finance senior notes, due December 15, 2026 ($500 principal, 4.011%) (2) 500  500  500  500  500 
Arch Finance senior notes, due December 15, 2046 ($450 principal, 5.031%) (2) 450  450  450  450  450 
Arch senior notes, due June 30, 2050 ($1,000 principal, 3.635%) 1,000  1,000  1,000  1,000  1,000 
Deferred debt costs on senior notes (24) (24) (24) (24) (25)
Revolving credit agreement borrowings, due August 23, 2028 —  —  —  —  — 
Total debt $ 2,726  $ 2,726  $ 2,726  $ 2,726  $ 2,725 
Shareholders’ equity available to Arch:
Series F non-cumulative preferred shares (5.45%) 330  330  330  330  330 
Series G non-cumulative preferred shares (4.55%) 500  500  500  500  500 
Common shareholders’ equity (a) 17,523  14,409  13,811  13,158  12,080 
Total shareholders’ equity available to Arch $ 18,353  $ 15,239  $ 14,641  $ 13,988  $ 12,910 
Total capital available to Arch $ 21,079  $ 17,965  $ 17,367  $ 16,714  $ 15,635 
Common shares outstanding, net of treasury shares (b) 373.3  373.1  372.9  372.2  370.3 
Book value per common share (3) (a)/(b) $ 46.94  $ 38.62  $ 37.04  $ 35.35  $ 32.62 
Leverage ratios:
Senior notes/total capital available to Arch 12.9  % 15.2  % 15.7  % 16.3  % 17.4  %
Revolving credit agreement borrowings/total capital available to Arch —  % —  % —  % —  % —  %
Debt/total capital available to Arch 12.9  % 15.2  % 15.7  % 16.3  % 17.4  %
Preferred/total capital available to Arch 3.9  % 4.6  % 4.8  % 5.0  % 5.3  %
Debt and preferred/total capital available to Arch 16.9  % 19.8  % 20.5  % 21.3  % 22.7  %

(1)    Issued by Arch Capital Group (U.S.) Inc. (“Arch-U.S.”), a wholly owned subsidiary of Arch, and fully and unconditionally guaranteed by Arch.
(2)    Issued by Arch Capital Finance LLC (“Arch Finance”), a wholly owned subsidiary of Arch U.S. MI Holdings Inc., and fully and unconditionally guaranteed by Arch.
(3)    Excludes the effects of stock options, restricted and performance stock units outstanding.

The following table provides the impact of share repurchases under the Company’s share repurchase program:
(U.S. Dollars and shares in millions, except per share data) Three Months Ended Cumulative
  December 31, September 30, June 30, March 31, December 31, December 31,
  2023 2023 2023 2023 2022 2023
Effect of share repurchases:
Aggregate cost of shares repurchased $ —  $ —  $ —  $ —  $ —  $ 5,872 
Shares repurchased —  —  —  —  —  433.6 
Average price per share repurchased $ —  $ —  $ —  $ —  $ —  $ 13.54 
Remaining share repurchase authorization (1) $ 1,000 
(1)    Repurchases under the share repurchase authorization may be effected from time to time in open market or privately negotiated transactions through December 31, 2024.
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