Onto Innovation's Q3 Profit Halves Amid Revenue Dip, Semilab Deal Revised

TL;DR

ONTO's Q3 numbers are a red flag, showing a sharp profit drop and revenue decline, making the Semilab acquisition a riskier bet.

AI Summary

ONTO INNOVATION INC. reported a significant decline in net income for the three months ended September 27, 2025, falling to $28.224 million from $53.051 million in the prior year, a decrease of 46.8%. Revenue also decreased by 13.5% to $218.193 million from $252.210 million in the same quarter. For the nine months ended September 27, 2025, net income was $126.230 million, down 17.4% from $152.853 million in the previous year, despite a slight revenue increase of 2.1% to $738.397 million from $723.382 million. Operating income for the quarter dropped sharply by 55.4% to $23.688 million from $53.072 million. The company is in the process of acquiring Semilab USA LLC for an amended price of $432.3 million in cash and 641,771 shares of common stock, a reduction of approximately $50.0 million from the initial offer due to a Second Request from the U.S. Department of Justice. Cash and cash equivalents surged to $603.085 million at September 27, 2025, from $212.945 million at December 28, 2024, largely driven by proceeds from marketable securities. Restructuring and other expenses more than doubled to $4.074 million for the quarter, up from $2.167 million. Diluted EPS for the quarter decreased to $0.57 from $1.07.

Why It Matters

ONTO's substantial decline in quarterly net income and revenue signals potential headwinds in the semiconductor equipment market, which could impact investor confidence and future growth projections. The revised Semilab USA acquisition, with a $50 million reduction in value, suggests regulatory scrutiny and potential integration challenges, affecting ONTO's competitive positioning against peers like KLA Corporation or Applied Materials. Employees at both ONTO and Semilab USA may face uncertainty regarding roles and strategic direction. Customers could see shifts in product offerings or support as the acquisition progresses, while the broader market watches for signs of a slowdown in capital equipment spending.

Risk Assessment

Risk Level: high — The 46.8% decline in net income for the three months ended September 27, 2025, to $28.224 million, coupled with a 13.5% revenue decrease to $218.193 million, indicates significant operational challenges. Furthermore, the ongoing regulatory scrutiny and subsequent $50.0 million reduction in the Semilab USA acquisition value introduce execution risk and potential integration difficulties, as evidenced by the Second Request from the U.S. Department of Justice.

Analyst Insight

Investors should exercise caution and consider reducing exposure to ONTO given the sharp decline in quarterly profitability and revenue. Monitor the Semilab USA acquisition closely for further developments and assess the impact of increased restructuring costs on future earnings. Await clearer signs of market stabilization and improved operational performance before considering new positions.

Financial Highlights

revenue

$218.193M

operating Margin

10.86%

net Income

$28.224M

eps

$0.57

gross Margin

50.70%

cash Position

$603.085M

revenue Growth

-13.5%

Revenue Breakdown

Key Numbers

• $218.193M — Revenue (Q3 2025) (Decreased 13.5% from $252.210M in Q3 2024)
• $28.224M — Net Income (Q3 2025) (Decreased 46.8% from $53.051M in Q3 2024)
• $0.57 — Diluted EPS (Q3 2025) (Decreased from $1.07 in Q3 2024)
• $738.397M — Revenue (9 months 2025) (Increased 2.1% from $723.382M in 9 months 2024)
• $126.230M — Net Income (9 months 2025) (Decreased 17.4% from $152.853M in 9 months 2024)
• $603.085M — Cash and Cash Equivalents (Sept 27, 2025) (Increased from $212.945M at Dec 28, 2024)
• $432.3M — Amended Cash Purchase Price for Semilab USA (Reduced from initial offer due to regulatory review)
• 641,771 — Shares for Semilab USA Acquisition (Reduced from initial offer due to regulatory review)
• $4.074M — Restructuring and Other Expenses (Q3 2025) (Increased from $2.167M in Q3 2024)
• 49,011,162 — Outstanding Shares (Oct 15, 2025) (Reflects share count after buybacks)

Key Players & Entities

• ONTO INNOVATION INC. (company) — registrant
• Semilab USA LLC (company) — acquisition target
• Semilab International Zrt. (company) — seller of Semilab USA LLC
• U.S. Department of Justice (regulator) — issued Second Request for acquisition
• FASB (regulator) — issued accounting standards updates
• New York Stock Exchange (regulator) — exchange where ONTO common stock is traded
• KLA Corporation (company) — competitor
• Applied Materials (company) — competitor

FAQ

Risk Factors

• Antitrust and Regulatory Review of Acquisitions [high — regulatory]: The company is undergoing a Second Request from the U.S. Department of Justice for its acquisition of Semilab USA LLC. This regulatory scrutiny led to an amended purchase price, reducing the cash component by approximately $50.0 million, indicating potential complexities and delays in future M&A activities.
• Increased Restructuring and Other Expenses [medium — operational]: Restructuring and other expenses more than doubled to $4.074 million for the quarter ended September 27, 2025, up from $2.167 million in the prior year. This significant increase suggests ongoing or new operational adjustments and associated costs.
• Declining Revenue and Profitability [high — market]: The company experienced a 13.5% decrease in revenue to $218.193 million and a 46.8% drop in net income to $28.224 million for the third quarter of 2025. This sharp decline in quarterly performance, despite a slight year-to-date revenue increase, signals potential headwinds in the current market.
• Impact of Acquisition Financing [medium — financial]: The acquisition of Semilab USA LLC involves a significant cash outlay of $432.3 million and the issuance of 641,771 shares. While the company's cash position has strengthened to $603.085 million, the substantial expenditure and share issuance could impact future financial flexibility and dilution.

Industry Context

The semiconductor equipment and materials industry is highly cyclical, driven by capital expenditure cycles of chip manufacturers. Companies like ONTO INNOVATION INC. operate in a competitive landscape requiring continuous innovation to meet the demands for advanced manufacturing processes. Trends include increasing complexity in chip design, the need for higher yields, and the development of new materials, all of which influence demand for inspection, measurement, and process control solutions.

Regulatory Implications

The company faces significant regulatory scrutiny, as evidenced by the U.S. Department of Justice's Second Request concerning the Semilab USA LLC acquisition. This indicates potential challenges in closing future M&A deals and may require substantial resources for compliance and negotiation.

What Investors Should Do

1. Monitor the outcome of the Semilab USA LLC acquisition and any further regulatory developments.
2. Analyze the drivers behind the sharp decline in Q3 2025 net income and operating income.
3. Evaluate the sustainability of the increased cash position in light of acquisition spending and potential future investments.

Key Dates

• 2025-09-27: End of Third Quarter 2025 — Reporting period for the significant decline in net income and revenue, and the increase in cash and cash equivalents.
• 2024-09-28: End of Third Quarter 2024 — Prior year comparison period for Q3 2025 financial results, showing a substantial decrease in profitability and revenue.
• 2025-12-28: End of Fiscal Year 2024 — Prior period balance sheet date, showing a lower cash and cash equivalents balance compared to September 27, 2025.

Glossary

Diluted EPS

Earnings per share calculated by dividing net income by the weighted average number of diluted common shares outstanding. It accounts for all potential dilutive common shares, such as stock options and convertible securities. (Indicates the profitability on a per-share basis, reflecting the impact of all potential share issuances. Decreased to $0.57 from $1.07 in Q3 2025.)

Marketable securities

Short-term investments that can be easily bought or sold in the open market. They are typically held for liquidity or as a temporary investment of excess cash. (A significant portion of these securities were sold to bolster cash reserves, as evidenced by the increase in cash and cash equivalents from $212.945 million to $603.085 million.)

Restructuring and other expenses

Costs incurred by a company related to significant reorganizations, such as layoffs, facility closures, or business unit divestitures. 'Other' can include various non-recurring or unusual expenses. (These expenses more than doubled to $4.074 million in Q3 2025, indicating potential operational changes or one-time charges impacting profitability.)

Second Request

A formal request from the U.S. Department of Justice (DOJ) or the Federal Trade Commission (FTC) during the antitrust review of a merger or acquisition. It requires the parties to submit extensive additional information and documents. (The company is subject to a Second Request for its Semilab USA LLC acquisition, which has already led to a reduction in the deal's purchase price, highlighting regulatory hurdles.)

Year-Over-Year Comparison

Compared to the prior year's third quarter, ONTO INNOVATION INC. reported a substantial decline in financial performance. Revenue decreased by 13.5% to $218.193 million, and net income plummeted by 46.8% to $28.224 million. Operating income saw an even sharper drop of 55.4%. This contrasts with the nine-month period, which showed a slight revenue increase of 2.1% but a notable 17.4% decrease in net income, indicating a challenging operational environment in the most recent quarter.

Key Financial Figures

• $0.001 — nge on Which Registered Common Stock, $0.001 par value per share ONTO New York S
• $432.3 million — ll pay to Semilab in the transaction to $432.3 million in cash (subject to certain customary p
• $50.0 million — represents a reduction of approximately $50.0 million in total Transaction value to approxima
• $495.0 million — otal Transaction value to approximately $495.0 million based upon the closing value of the Com

Filing Documents

• onto-20250927.htm (10-Q) — 2749KB
• onto-ex31_1.htm (EX-31.1) — 20KB
• onto-ex31_2.htm (EX-31.2) — 20KB
• onto-ex32_1.htm (EX-32.1) — 12KB
• onto-ex32_2.htm (EX-32.2) — 12KB
• 0001193125-25-270040.txt ( ) — 11743KB
• onto-20250927.xsd (EX-101.SCH) — 1008KB
• onto-20250927_htm.xml (XML) — 2914KB

FINANCIAL INFORMATION

PART I FINANCIAL INFORMATION Item 1.

Financial Statements (unaudited)

Financial Statements (unaudited) 1 Condensed Consolidated Statements of Operations for the three and nine-months ended September 27, 2025 and September 28, 2024 1 Condensed Consolidated Statements of Comprehensive Income for the three and nine-months ended September 27, 2025 and September 28, 2024 2 Condensed Consolidated Balance Sheets at September 27, 2025 and December 28, 2024 3 Condensed Consolidated Statements of Cash Flows for the nine-months ended September 27, 2025 and September 28, 2024 4 Condensed Consolidated Statements of Stockholders' Equity for the three and nine-months ended September 27, 2025 and September 28, 2024 5 Notes to Condensed Consolidated Financial Statements 7 Item 2.

Management's Discussion and Analysis of Financial Condition and Results of Operations

Management's Discussion and Analysis of Financial Condition and Results of Operations 22 Item 3.

Quantitative and Qualitative Disclosures about Market Risk

Quantitative and Qualitative Disclosures about Market Risk 29 Item 4.

Controls and Procedures

Controls and Procedures 29

OTHER INFORMATION

PART II OTHER INFORMATION Item 1.

Legal Proceedings

Legal Proceedings 30 Item 1A.

Risk Factors

Risk Factors 30 Item 2. Unregistered Sales of Equity Securities and Use of Proceeds 30 Item 3. Defaults Upon Senior Securities 30 Item 4. Mine Safety Disclosures 30 Item 5. Other Information 31 Item 6. Exhibits 31

Signatures

Signatures Table of Contents

FINANCIAL INFORMATION

PART I FINANCIAL INFORMATION

Financial Statements

Item 1. Financial Statements ONTO INNOVATION INC. CONDENSED CONSOLIDATED S TATEMENTS OF OPERATIONS (In thousands, except per share data) (Unaudited) Three Months Ended Nine Months Ended September 27, September 28, September 27, September 28, 2025 2024 2025 2024 Revenue $ 218,193 $ 252,210 $ 738,397 $ 723,382 Cost of revenue 107,570 115,831 362,419 340,482 Gross profit 110,623 136,379 375,978 382,900 Operating expenses: Research and development 32,493 28,277 95,815 81,876 Sales and marketing 17,103 19,451 51,729 56,635 General and administrative 24,820 20,298 72,608 57,363 Amortization 8,445 13,114 25,336 39,338 Restructuring and other 4,074 2,167 11,421 3,046 Total operating expenses 86,935 83,307 256,909 238,258 Operating income 23,688 53,072 119,069 144,642 Interest income, net 9,290 8,667 27,187 24,524 Other (expense) income, net ( 999 ) ( 724 ) ( 2,879 ) 10 Income before provision for income taxes 31,979 61,015 143,377 169,176 Provision for income taxes 3,755 7,964 17,147 16,323 Net income $ 28,224 $ 53,051 $ 126,230 $ 152,853 Earnings per share: Basic $ 0.58 $ 1.07 $ 2.57 $ 3.10 Diluted $ 0.57 $ 1.07 $ 2.57 $ 3.08 Weighted average number of shares outstanding: Basic 49,023 49,426 49,044 49,333 Diluted 49,106 49,694 49,178 49,669 The accompanying notes are an integral part of these financial statements. 1 Table of Contents ONTO INNOVATION INC. CONDENSED CONSOLIDATED STATEM ENTS OF COMPREHENSIVE INCOME (In thousands) (Unaudited) Three Months Ended Nine Months Ended September 27, September 28, September 27, September 28, 2025 2024 2025 2024 Net income $ 28,224 $ 53,051 $ 126,230 $ 152,853 Other comprehensive income (loss), net of tax: Change in net unr

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