8-K: onsemi Reports Q4 and Full Year 2025 Results Amid Market Stabilization

onsemi announced its fourth quarter and full year 2025 financial results, highlighting strong free cash flow generation and strategic investments in advanced power and sensing technologies.

Summary

• Fourth quarter 2025 revenue was $1,530.1 million, a 1% sequential decrease and an 11% year-over-year decrease.
• Full year 2025 revenue totaled $5,995.4 million, a 15% decrease compared to 2024.
• Non-GAAP diluted earnings per share for Q4 2025 was $0.64, compared to $0.63 in Q3 2025 and $0.95 in Q4 2024.
• Full year 2025 non-GAAP diluted earnings per share was $2.35, down from $3.98 in 2024.
• Generated $1.8 billion in cash from operations and a record high $1.4 billion in free cash flow for the full year 2025, achieving a 24% free cash flow margin.
• Returned 100% of the $1.4 billion annual free cash flow to shareholders through share repurchases in 2025.
• Authorized a new share repurchase program of up to $6 billion over the next three years.
• Introduced vertical gallium nitride (vGaN) power semiconductors, enhancing power density, efficiency, and ruggedness.
• Signed a Memorandum of Understanding (MoU) with Innoscience to explore expanding gallium nitride (GaN) power device production using Innoscience's 200mm GaN-on-silicon process.
• Established a new collaboration agreement with GlobalFoundries (GF) to develop and manufacture next-generation 650V gallium nitride (GaN) power devices.

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a moderately positive report. While year-over-year financial performance shows significant declines, the strong free cash flow, substantial share repurchase authorization, and strategic investments in GaN technology, coupled with management's comments on market stabilization, indicate a solid operational foundation and future growth potential.

Positives

• Achieved a record high free cash flow margin of 24% for 2025, generating $1.4 billion in free cash flow.
• Returned 100% of the 2025 annual free cash flow ($1.4 billion) to shareholders through share repurchases.
• Authorized a new, substantial share repurchase program of up to $6 billion over the next three years, signaling confidence in future cash generation and commitment to shareholder returns.
• Introduced innovative vertical gallium nitride (vGaN) power semiconductors, setting new benchmarks for power density, efficiency, and ruggedness.
• Formed strategic collaborations with Innoscience and GlobalFoundries to expand and develop next-generation GaN power devices, strengthening technology leadership.
• Management noted increasing signs of stabilization in key markets during the fourth quarter, suggesting a potential bottoming out of market declines.

Negatives

• Fourth quarter 2025 revenue of $1,530.1 million represents an 11% decrease year-over-year.
• Full year 2025 revenue decreased by 15% to $5,995.4 million compared to 2024.
• GAAP gross margin for Q4 2025 declined to 36.0% from 45.2% in Q4 2024, and full year GAAP gross margin dropped to 33.1% from 45.4% in 2024.
• Non-GAAP diluted EPS for Q4 2025 decreased to $0.64 from $0.95 in Q4 2024, and full year non-GAAP diluted EPS fell to $2.35 from $3.98 in 2024.
• All business segments (PSG, AMG, ISG) experienced year-over-year revenue declines in Q4 2025 and for the full year 2025, with ISG seeing the largest Q4 YoY decline at 17%.

Risks

• The document refers readers to 'Part I, Item 1A Risk Factors in our 2025 Annual Report on Form 10-K filed with the Securities and Exchange Commission (SEC) on February 9, 2026 (our 2025 Form 10-K), and from time-to-time in our other SEC reports' for factors that could cause results or events to differ materially from forward-looking statements.

Future Outlook

For the first quarter of 2026, onsemi projects revenue to be between $1,435 million and $1,535 million. Non-GAAP gross margin is expected to range from 37.5% to 39.5%, and non-GAAP diluted earnings per share is anticipated to be between $0.56 and $0.66. The company will utilize a normalized non-GAAP effective tax rate of 15% starting in 2026.

Management Comments

• Hassane El-Khoury, President and CEO, stated: "We remained disciplined in our execution and met expectations in the fourth quarter as we saw increasing signs of stabilization in our key markets."
• Hassane El-Khoury also commented: "We continue to invest in intelligent power and sensing technologies that position us to win in the most critical technology transitions shaping our industry. Our strategy is clear: lead in automotive, industrial, and AI data center power with innovation that delivers higher-value solutions for our customers and long-term returns for our shareholders."
• Thad Trent, EVP and CFO, noted: "In 2025, we generated $1.4 billion of free cash flow and returned 100% of our annual free cash flow to shareholders through share repurchases."
• Thad Trent further added: "With our major investment cycle behind us and new technologies ramping, we continue to strengthen our financial foundation. As we continue to drive meaningful improvements to our cost structure across the company, we are creating greater leverage in our operating model going forward. Our focus remains on operational excellence and margin expansion, and we are well-positioned to benefit as market conditions improve."

Industry Context

StockSavvy.ai notes that onsemi's focus on automotive, industrial, and AI data center power aligns with major industry megatrends like vehicle electrification, sustainable energy grids, and industrial automation. The introduction of vGaN power semiconductors and collaborations with Innoscience and GlobalFoundries for GaN technology development position onsemi to capitalize on the growing demand for high-efficiency power solutions, particularly in electric vehicles and renewable energy infrastructure, where GaN is a critical enabling technology. The reported 'stabilization in key markets' suggests a broader industry trend of demand recovery after a period of inventory adjustments and macroeconomic headwinds.

Comparison to Industry Standards

• The significant year-over-year revenue and profitability declines for onsemi in 2025 reflect a broader downturn experienced by many semiconductor companies, particularly those exposed to industrial and automotive sectors which saw inventory corrections and demand normalization after pandemic-driven highs. For example, other power semiconductor players like Infineon Technologies and STMicroelectronics have also reported varying degrees of market softness and inventory adjustments in their recent earnings.
• onsemi's record 24% free cash flow margin in 2025 is a strong indicator of operational efficiency and capital discipline, potentially outperforming some peers who may have higher capital expenditure requirements or less mature cash conversion cycles. This level of free cash flow generation is competitive within the mature semiconductor manufacturing space.
• The strategic investments in Gallium Nitride (GaN) technology and partnerships with Innoscience and GlobalFoundries are critical for maintaining competitiveness. Companies like Nexperia and GaN Systems (now part of Infineon) are also heavily investing in GaN, making onsemi's advancements in vGaN and expanded production capabilities crucial for securing market share in high-growth applications like EV chargers, data center power supplies, and industrial power conversion.

Stakeholder Impact

• Shareholders: Benefited from $1.4 billion in share repurchases in 2025 and are set to benefit from a new $6 billion share repurchase program over the next three years, indicating strong capital returns. However, significant year-over-year declines in revenue and EPS could impact investor sentiment.
• Customers: Will benefit from new product introductions like vertical gallium nitride (vGaN) power semiconductors, offering improved power density and efficiency. Strategic collaborations with Innoscience and GlobalFoundries aim to expand and enhance GaN power device offerings.
• Employees: The company's focus on operational excellence and cost structure improvements could imply ongoing efficiency initiatives, but no direct impact on employment levels is mentioned. Investments in new technologies suggest opportunities for innovation and growth.
• Suppliers: Collaborations with partners like Innoscience and GlobalFoundries indicate ongoing and potentially expanding relationships for technology development and manufacturing.

Next Steps

• onsemi will host a conference call for the financial community on February 9, 2026, at 5 p.m. Eastern Time (EST) to discuss these results.
• The company plans to continue investing in intelligent power and sensing technologies.
• onsemi aims to continue driving meaningful improvements to its cost structure and operational excellence.
• The company will continue to focus on margin expansion as market conditions improve.
• The new $6 billion share repurchase program will be executed over the next three years.

Key Dates

Recommendation

While onsemi demonstrated strong free cash flow generation and a commitment to shareholder returns through a significant new share repurchase program, the substantial year-over-year declines in revenue and profitability for both Q4 and the full year 2025 are concerning. The outlook for Q1 2026 suggests stabilization rather than robust growth. Strategic investments in GaN technology are positive long-term drivers, but the immediate financial performance indicates a challenging market environment. A 'hold' recommendation is appropriate as investors should monitor for concrete signs of revenue growth acceleration and sustained margin expansion in upcoming quarters, beyond just market stabilization, before considering a 'buy'.

Keywords

semiconductor, onsemi, earnings, financial results, Q4 2025, full year 2025, free cash flow, share repurchase, gallium nitride, GaN, vGaN, automotive, industrial, AI data center, power semiconductors, sensing technologies, GlobalFoundries, Innoscience