ONBy Calypso Research7 min read

On Semiconductor (ON) Q4 2025 Earnings Analysis

ON the Fence with $1.5B Revenue Dip

Key Takeaways

On Semiconductor (ON) reported Q4 2025 earnings with revenue of $1.5B, representing a -11.2% year-over-year change. The stock moved +3.5% on earnings day.

The bull case: ON leverages its differentiated AI power stack, GaN/SiC leadership, and FabRite-driven cost structure to expand margins toward its long-term model while AI, auto content, and industrial recovery drive above-market growth and robust free cash flow returned to shareholders.

The bear case: Macro and auto restocking remain tepid while non-core exits, utilization headwinds, and intense competition in AI power and wide bandgap slow ON’s path to its 53% margin model and limit upside to revenue growth and earnings over the next few years.

Financial Highlights

  • Revenue: $1.5B (-11.2% YoY)
  • Gross Profit: $534M (34.9% margin, -10.3% YoY)
  • Operating Income: $253M (16.5% margin, -7.2% YoY)
  • Net Income: $182M
  • TTM Revenue: $6.0B

Stock Performance

  • Earnings Day Move: +3.5%
  • Year-to-Date: +22.5%
  • 1-Year Return: +30.1%
  • vs. S&P 500 (since earnings): +32.8%
  • vs. Nasdaq (since earnings): +35.6%

View live ON data, AI chat, and interactive debates on Calypso →

What Management Said

Here are the key debates and direct quotes from On Semiconductor's Q4 2025 earnings call:

Sustainability and Scale of AI Data Center Growth (TAM, % of Sales, Differentiation)

Sentiment: Positive

"We're the only company or one of the very few companies that are able to do the high voltage, think 800 volts with our 1,200 volt devices all the way to the SPS type devices closer to the core... our architectures moving forward are collapsing the conversion tree... We're the only ones company that has vertical GaN." — Hassane El‑Khoury
"It's a matter of the when, not the if. Because we have the products. The market is there... Remember, we started that journey last year with new products... I see that happening. Again, it's a question of when." — Hassane El‑Khoury

Margin Expansion Path: Utilization, FabRite, and Achievability of Long‑Term 53% GM Target

Sentiment: Positive

"As I said in my prepared remarks, we believe there's margin expansion through the year... we have the FabRite activities that will start to hit the company later in the year. And as utilization goes up, that will impact later in the year as well." — Thad Trent
"There's about 700 basis points of headwind from underutilization just in the Q4 margin... we believe there's another 200 basis points of FabRite activities... another 200 basis points [from] the fab divestitures... and then... another 200 basis points plus [from] new products... you start adding that all up... you're getting to that, you know, pretty close to that 53% gross margin target." — Thad Trent

Non‑Core Business Exits: Revenue Headwind vs. Margin/Quality Benefits

Sentiment: Positive

"There are also about $40 million of exits that are in there. So that's why that bucket was down sequentially... If you exclude the exits, we are above seasonal." — Thad Trent
"It's neutral today. So the margin on that business today is near the corporate average... The reason we're exiting is because we're seeing margin pressure and pricing pressure on that business... it's not going to be a headwind to utilization." — Thad Trent

Auto and Industrial Cycles: Stabilization, Lack of Restock, and Relative Growth Outlook

Sentiment: Mixed

"Our core business has been growing above market even in the downturn almost... we expect '27 to resume that over market growth... our automotive actually grew 70% [over] five years... pretty much on a flat SAAR." — Hassane El‑Khoury
"You think [auto restock] would [happen]. But it's not. Because I think a lot of the automotive market, on the tier one layer, they're running on thin margins... neither me, and I think most of my peers... have talked about the same thing that we're not seeing the restocking... which I think is setting automotive to a risky ramp when the demand does pick up." — Hassane El‑Khoury

GaN / SiC Strategy and Manufacturing Model vs. Competitors

Sentiment: Positive

"This year, we are preparing to sample more than 30 new GaN devices spanning 40 to 1,200 volts... To deliver lateral GaN to the market, we announced new foundry partnerships... For VGaN, we are already collaborating with GM on the development of electric drive systems... We expect first VGaN revenue in 2027." — Hassane El‑Khoury
"From an internal silicon carbide manufacturing, we're happy with our footprint... We will continue to focus on that from a supply from a resiliency but you're not gonna see a CapEx cycle going to the furnaces or substrate manufacturing." — Hassane El‑Khoury

Bull Case

ON leverages its differentiated AI power stack, GaN/SiC leadership, and FabRite-driven cost structure to expand margins toward its long-term model while AI, auto content, and industrial recovery drive above-market growth and robust free cash flow returned to shareholders.

Bear Case

Macro and auto restocking remain tepid while non-core exits, utilization headwinds, and intense competition in AI power and wide bandgap slow ON’s path to its 53% margin model and limit upside to revenue growth and earnings over the next few years.

Looking Ahead

With revenue declining -11.2% year-over-year, investors will be watching for signs of a turnaround at On Semiconductor, particularly around sustainability and Scale of AI Data Center Growth (TAM, % of Sales, Differentiation). With operating margins at 16.5%, margin trends will remain a focal point. The market's positive reaction on earnings day suggests confidence in management's direction, and the next earnings report will be a key catalyst for the stock.

Frequently Asked Questions

What was On Semiconductor's revenue in Q4 2025?

On Semiconductor reported Q4 2025 revenue of $1.5B, representing a -11.2% year-over-year change.

Did On Semiconductor beat earnings expectations in Q4 2025?

The stock rose +3.5% on earnings day, suggesting the results met or exceeded market expectations. The current bull case centers on: ON leverages its differentiated AI power stack, GaN/SiC leadership, and FabRite-driven cost structure to expand margins toward its long-term model while AI, auto content, and industrial recovery drive above-market growth and robust free cash flow returned to shareholders.

What is the bull case for ON stock?

The bull case for ON centers on: ON leverages its differentiated AI power stack, GaN/SiC leadership, and FabRite-driven cost structure to expand margins toward its long-term model while AI, auto content, and industrial recovery drive above-market growth and robust free cash flow returned to shareholders.

What is the bear case for ON stock?

The bear case for ON centers on: Macro and auto restocking remain tepid while non-core exits, utilization headwinds, and intense competition in AI power and wide bandgap slow ON’s path to its 53% margin model and limit upside to revenue growth and earnings over the next few years.

How has ON stock performed since its Q4 2025 earnings?

ON moved +3.5% on the day of its Q4 2025 earnings report, outperforming the S&P 500 by +32.8% since earnings. Year-to-date, the stock has returned +22.5%.

View all Semiconductor Earnings Reports →

Browse all 400+ earnings reports →

Learn More

Analyze ON in Real Time

This is a static snapshot. For live financial data, AI-powered chat, and interactive earnings debates for On Semiconductor and 400+ other stocks, explore the full platform.

Open ON on Calypso →

Calypso is an AI-powered equity research platform used by investment teams to cut earnings research time by over 80%.