Exhibit 99.1

2858 De La Cruz Boulevard, Santa Clara CA 95050 USA

+1.408.280.7900                                             www.pdf.com

News Release

PDF Solutions^® Reports Second Quarter 2026 Financial Results

Santa Clara, CA, August 6, 2026 – PDF Solutions, Inc. (Nasdaq: PDFS), a leading provider of comprehensive data solutions for the semiconductor and electronics ecosystem, today announced financial results for its second quarter ended June 30, 2026.

Financial Highlights of Second Quarter 2026

Total revenues for the second quarter of 2026 were $61.5 million, compared to $60.1 million for the first quarter of  2026 and $51.7 million for the second quarter of 2025.

GAAP gross margin for the second quarter of 2026 was 69%, compared to 72% for the first quarter of 2026 and 71% for the second quarter of 2025. Non-GAAP gross margin for the second quarter of 2026 was 73%, compared to 76% for the first quarter of 2026 and 76% for the second quarter of 2025.

GAAP operating margin for the second quarter of 2026 was 8%, compared to 10% for the first quarter of 2026 and 2% for the second quarter of 2025. Non-GAAP operating margin for the second quarter of 2026 was 22%, compared to 25% for the first quarter of 2026 and 19% for the second quarter of 2025.

GAAP net income for the second quarter of 2026 was $4.3 million, or $0.10 per diluted share, compared to net income of $4.8 million, or $0.12 per diluted share, for the first quarter of 2026, and net income of $1.1 million, or $0.03 per diluted share, for the second quarter of 2025. Non-GAAP net income for the second quarter of 2026 was $11.4 million, or $0.27 per diluted share, compared to non-GAAP net income of $12.6 million, or $0.31 per diluted share, for the first quarter of 2026, and non-GAAP net income of $7.3 million, or $0.19 per diluted share, for the second quarter of 2025.

Ending backlog for the second quarter of 2026 was $270.7 million, compared to $246.4 for the first quarter of 2026 and $232.6 for the second quarter of 2025.

Financial Outlook

“In the second quarter of 2026, PDF Solutions continued on its growth trajectory, enabled by a broad product and services portfolio developed and curated to address the evolving needs of the semiconductor manufacturing industry,” said John Kibarian, CEO and President of the Company. He continued, “In the quarter, we had major customer wins for our secureWISE system, for our DirectScan system, and for our Exensio product and services. We significantly increased backlog in the quarter, which we expect to add to revenue for a number of years. Taking into account these positive factors, we reaffirm our 20% annual revenue growth target for 2026.”

PDF Solutions® Reports Second Quarter 2026 Financial Results

Conference Call

As previously announced, PDF Solutions will discuss these results on a live conference call beginning at 2:00 p.m. Pacific Time / 5:00 p.m. Eastern Time today. To participate on the live call, analysts and investors should pre-register at: https://register-conf.media-server.com/register/BIed4111b6aacf4d2e83be3b8b0e0f63aa. We encourage participants to dial into the call ten minutes ahead of the scheduled time. The teleconference will also be webcast simultaneously on the Company’s website at https://ir.pdf.com/webcasts. A replay of the conference call webcast will be available after the call on the Company’s investor relations website. A copy of this press release, including the disclosure and reconciliation of certain non-GAAP financial measures to the comparable GAAP measures, which non-GAAP measures may be used periodically by PDF Solutions’ management when discussing financial results with investors and analysts, will also be available on PDF Solutions’ website at http://www.pdf.com/press-releases on and following the date of this release.

Second Quarter 2026 Financial Commentary Available Online

A Management Report reviewing the Company’s second quarter 2026 financial results will be furnished to the Securities and Exchange Commission on Form 8-K and published on the Company’s website at http://ir.pdf.com/financial-reports. Analysts and investors are encouraged to review this commentary prior to participating in the conference call.

Information Regarding Use of Non-GAAP Financial Measures

In addition to providing results that are determined in accordance with accounting principles generally accepted in the United States of America (“GAAP”), PDF Solutions also provides certain non-GAAP financial measures. Non-GAAP gross profit and margin exclude stock-based compensation expense and the amortization of acquired technology under costs of revenues. Non-GAAP net income excludes stock-based compensation expense, amortization of acquired intangible assets, amortization of debt issuance costs and the effects of certain non-recurring items, such as expenses for certain legal proceedings, acquisition-related and integration costs, and their related income tax effects, as applicable, as well as adjustments for the valuation allowance for deferred tax assets and reconciling items. Non-GAAP financial measures are used by management internally to measure the Company’s profitability and performance. PDF Solutions’ management believes that these non-GAAP measures provide useful supplemental information to investors regarding the Company’s ongoing operations in light of the fact that none of these categories of expense and income has a current effect on the future uses of cash (with the exception of expenses related to certain legal proceedings and acquisition-related and integration costs) nor do they impact the generation of current or future revenues. These non-GAAP results should not be considered an alternative to, or a substitute for, GAAP financial information, and may differ from similarly titled non-GAAP measures used by other companies. In particular, these non-GAAP financial measures are not a substitute for GAAP measures of income or loss as a measure of performance, or to cash flows from operating, investing and financing activities as a measure of liquidity. Since management uses these non-GAAP financial measures internally to measure profitability and performance, PDF Solutions has included these non-GAAP measures to give investors an opportunity to see the Company’s financial results as viewed by management. A reconciliation of the comparable GAAP financial measures to the non-GAAP financial measures is provided at the end of the Company’s unaudited condensed consolidated financial statements presented below.

PDF Solutions® Reports Second Quarter 2026 Financial Results

About PDF Solutions

PDF Solutions (Nasdaq: PDFS) provides comprehensive data solutions designed to empower organizations across the semiconductor and electronics industry ecosystems to improve the yield and quality of their products and operational efficiency for increased profitability. The Company’s products and services are used by Fortune 500 companies across the semiconductor ecosystem to achieve smart manufacturing goals by connecting and controlling equipment, collecting data generated during manufacturing and test operations, and performing advanced analytics and machine learning to enable profitable, high-volume manufacturing.

Founded in 1991, PDF Solutions is headquartered in Santa Clara, California, with operations across North America, Europe, and Asia. The Company (directly or through one or more subsidiaries) is an active member of SEMI, INEMI, TPCA, IPC, the OPC Foundation, and DMDII. For the latest news and information about PDF Solutions or to find office locations, visit https://www.pdf.com/.

Characterization Vehicle, Cimetrix, CV, DirectScan, eProbe, PDF Solutions, Sapience, secureWISE, and logos therefor are trademarks or registered trademarks of PDF Solutions, Inc. or its subsidiaries.

Forward-Looking Statements

This press release and the planned conference call include forward-looking statements regarding the Company’s future expected business performance and financial results, including expectations about total revenue growth for 2026 and backlog contributions to future revenue, progress towards long-term model target margins, portfolio strength and momentum and other statements identified by words such as “could,” “expects,” “intends,” “may,” “plans,” “potential,” “should,” “will,” “would,” or similar expressions and the negatives of those terms, that are subject to future events and circumstances. Other than statements of historical fact, all statements contained in this press release and the planned conference call are forward-looking statements within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. Actual results could differ materially from those expressed in these forward-looking statements. Risks and uncertainties that could cause results to differ materially include risks associated with: the effectiveness of the Company’s business and technology strategies; current semiconductor industry trends and competition; rates of adoption of the Company’s solutions by new and existing customers; project milestones or delays and performance criteria achieved; cost and schedule of new product development and investments in research and development; the continuing impact of macroeconomic conditions, including inflation, changing interest rates and tariffs, energy prices, the evolving trade regulatory environment and geopolitical tensions, armed conflicts, government shutdowns, and other trends impacting the semiconductor industry, the Company’s customers, operations, and supply and demand for its products; supply chain disruptions; changes in laws and regulations, including recent tax and data privacy laws and regulations, or the interpretation or enforcement thereof; the success of the Company’s strategic growth opportunities and partnerships; recent and future acquisitions, strategic alliances and relationships and the Company’s ability to successfully integrate acquired businesses and technologies; whether the Company can successfully convert backlog into revenue; customers’ production volumes under contracts that provide Gainshare; the sufficiency of the Company’s cash resources and anticipated funds from operations; the Company’s ability to obtain additional financing if needed and its ability to use support and updates for certain open-source software; and other risks and uncertainties discussed in PDF Solutions’ periodic public filings with the Securities and Exchange Commission, including, without limitation, its Annual Report on Form 10-K for the year ended December 31, 2025, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K and any amendments to such reports. All forward-looking statements made in this press release and the conference call are made as of the date hereof, and PDF Solutions does not assume any obligation to update such statements nor the reasons why actual results could differ materially from those projected in such statements. 

PDF Solutions® Reports Second Quarter 2026 Financial Results

PDF SOLUTIONS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

(In thousands)

PDF Solutions® Reports Second Quarter 2026 Financial Results

PDF SOLUTIONS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)

(In thousands, except per share amounts)

PDF Solutions® Reports Second Quarter 2026 Financial Results

PDF SOLUTIONS, INC.

RECONCILIATION OF GAAP GROSS PROFIT AND MARGIN TO NON-GAAP GROSS PROFIT AND MARGIN (UNAUDITED)

(In thousands)

RECONCILIATION OF GAAP INCOME (LOSS) FROM OPERATIONS AND OPERATING MARGIN TO NON-GAAP INCOME FROM OPERATIONS AND OPERATING MARGIN (UNAUDITED)

(In thousands)

PDF Solutions® Reports Second Quarter 2026 Financial Results

PDF SOLUTIONS, INC.

RECONCILIATION OF GAAP NET INCOME (LOSS) TO NON-GAAP NET INCOME (UNAUDITED)

(In thousands, except per share amounts)

Exhibit 99.2

Q2 2026

Management Report

August 6, 2026

Contents

■ Q2 2026 Results

– Overview

– Key Financial & Operating Metrics

– Revenue by Geographic Area

■ Q2 2026 Non-GAAP Results

– Reconciliation of GAAP Net Income (Loss) to Non-GAAP Net Income

– Reconciliation of GAAP to Non-GAAP Spending by Function

■ Related Information

The following commentary is provided by management and should be referenced in conjunction with PDF Solutions’ Second Quarter 2026 financial results press release available on its Investor Relations website at http://www.pdf.com/financial-news. These remarks represent management’s current views of the Company’s financial and operational performance and are provided to give investors and analysts further insight into its performance in advance of the earnings call webcast. The Company disclaims any duty to update this information for future events.

 PDF Solutions Reports Second Quarter 2026 Results

Key Financial & Operating Metrics 

Quarterly

(in thousands, except outstanding shares, which are in millions, and percentages)

(Dollars in thousands)

Revenue by Geographic Area

GAAP / Non-GAAP Presentation

In addition to providing results that are determined in accordance with accounting principles generally accepted in the United States of America (“GAAP”), the Company also provides certain non-GAAP financial measures. Non-GAAP gross profit and margin exclude stock-based compensation expense and the amortization of acquired technology under costs of revenues. Non-GAAP net income excludes stock-based compensation expense, amortization of acquired intangible assets, amortization of debt issuance costs, and the effects of certain non-recurring items, such as expenses for certain legal proceedings, acquisition-related and integration costs, recovery from previously written-off property and equipment, and their related income tax effects, as applicable, as well as adjustments for the valuation allowance for deferred tax assets and reconciling items. Non-GAAP financial measures are used by management internally to measure the Company’s profitability and performance. PDF Solutions’ management believes that these non-GAAP measures provide useful supplemental information to investors regarding the Company’s ongoing operations in light of the fact that none of these categories of expense and income has a current effect on the future uses of cash (with the exception of expenses related to a certain legal proceedings and acquisition-related and integration costs) nor do they impact the generation of current or future revenues. These non-GAAP results should not be considered an alternative to, or a substitute for, GAAP financial information, and may differ from similarly titled non-GAAP measures used by other companies. In particular, these non-GAAP financial measures are not a substitute for GAAP measures of income or loss as a measure of performance, or to cash flows from operating, investing and financing activities as a measure of liquidity. Since management uses these non-GAAP financial measures internally to measure profitability and performance, PDF Solutions has included these non-GAAP measures to give investors an opportunity to see the Company’s financial results as viewed by management. A reconciliation of the comparable GAAP financial measures to the non-GAAP financial measures is included herein.

 

Reconciliation of GAAP Net Income (Loss) to Non-GAAP Net Income

Quarterly

(in thousands, except for per share amounts)

Reconciliation of GAAP Net Income (Loss) to Non-GAAP Net Income

Year to Date

(in thousands, except for per share amounts)

Reconciliation of GAAP to Non-GAAP Spending by Function

Quarterly

(in thousands)

 

11

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Reconciliation of GAAP to Non-GAAP Spending by Function

Year to Date

(in thousands)

 

		Six Months Ended June 30,
		2026			2025			2024
Cost of Revenue - GAAP		$36,045			$27,841			$25,759
Adjustments to reconcile GAAP Cost of Revenue to Non-GAAP Cost of Revenue:
Stock-based compensation expense		(2,537	)		(2,599	)		(2,385	)
Amortization of acquired technology		(1,996	)		(1,676	)		(1,168	)
Cost of Revenue - Non-GAAP		$31,512			$23,566			$22,206
Research & Development - GAAP		$35,644			$29,541			$25,633
Adjustments to reconcile GAAP R&D to Non-GAAP R&D:
Stock-based compensation expense		(4,561	)		(4,670	)		(4,265	)
Research & Development - Non-GAAP		$31,083			$24,871			$21,368
Selling, General, & Administrative - GAAP		$36,476			$43,116			$32,757
Adjustment to reconcile GAAP SG&A to Non-GAAP SG&A:
Stock-based compensation expense		(5,296	)		(5,526	)		(5,160	)
Expenses for certain legal proceedings (1)		(711	)		(227	)		—
Acquisition-related and integration costs		(38	)		(4,504	)		—
Selling, General, & Administrative - Non-GAAP		$30,431			$32,859			$27,597

 

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(1)

Represents legal costs and expenses related to a certain arbitration proceeding, which are expected to continue until this matter is fully resolved.