ON Semiconductor (ON) has just posted its latest quarterly scorecard, with Q4 2025 revenue at US$1.5b and basic EPS of US$0.45. This sets the stage against a year earlier period that saw Q4 2024 revenue of US$1.7b and basic EPS of US$0.89. Over the past few quarters, the company has reported revenue of US$1.4b and basic EPS of US$1.15 in Q1 2025, and revenue of US$1.5b and basic EPS of US$0.63 in Q3 2025. This progression gives investors a clearer view of how the top line and EPS are tracking into the latest results and what that could indicate for margins.

See our full analysis for ON Semiconductor.

With the headline numbers on the table, the next step is to compare these results with the most common narratives around ON Semiconductor, highlighting where the story on growth and margins aligns with expectations and where it begins to diverge.

Margins Hit By 2% Net Profit Level

• Over the last 12 months, ON’s net profit margin sat at 2%, compared with 22.2% in the prior year, alongside a large one off loss of US$979.8m that weighed on reported profitability.
• Bears argue that pressure on margins could last, yet the bearish narrative itself assumes margins could reach 22.8% in about 3 years, which sits far above the current 2% and implies a large change from today.
  • That gap between 2% reported margin and the 22.8% margin assumption shows how much the cautious view still relies on improvement from current levels.
  • The one off US$979.8m loss is a clear factor in the recent 2% margin, so you need to decide how much of the current weakness you treat as recurring versus exceptional.

Skeptics point to the hit to margins, but the cautious camp still builds in a big recovery path, so it is worth reading how they justify that in more detail in the 🐻 ON Semiconductor Bear Case.

Earnings Forecasts Outrun 9.2% Revenue Trend

• Analysts expect revenue to grow about 9.2% per year while forecasting earnings growth of roughly 27.3% per year, so profit is expected to grow much faster than the top line.
• Supporters of the bullish view see this spread as evidence that manufacturing improvements and product mix shifts could do a lot of heavy lifting for earnings, yet current trailing net income of US$121m on about US$6.0b of revenue shows that recent profitability is still far from those ambitions.
  • The bullish case talks about higher margin areas like silicon carbide and AI data center power as key drivers for that gap between 9.2% revenue growth and 27.3% earnings growth.
  • With today’s earnings base relatively small compared with the revenue line, any improvement in margin will have an outsized effect on earnings per share, which is exactly what bullish investors are focusing on.

Supporters highlight how a small earnings base and higher margin targets could reshape the story, so it can be useful to see how that optimistic path is laid out in the 🐂 ON Semiconductor Bull Case.

Valuation Sits Between P/S Discount And DCF Gap

• ON trades on a P/S of 6.7x, below both peer average of 10.1x and semiconductor industry average of 8.3x. The current share price of US$102.67 sits above a DCF fair value of about US$73.77.
• Supporters of the consensus narrative see room for improvement with earnings forecasts pointing higher and a consensus analyst price target of about US$103.45. However, the combination of a lower P/S multiple and a reported 2% net margin means you are weighing a discount to peers against margins that are currently much thinner than they were in the prior year.
  • The analyst target of roughly US$103.45 is very close to the current US$102.67 share price, which suggests expectations are already aligned with a fairly full near term view based on those forecasts.
  • At the same time, the lower P/S ratio compared with peers highlights how reported profitability, including the large one off loss, may be an important part of why the stock is not priced at the higher multiples seen across the group.

Next Steps

To see how these results tie into long-term growth, risks, and valuation, check out the full range of community narratives for ON Semiconductor on Simply Wall St. Add the company to your watchlist or portfolio so you'll be alerted when the story evolves.

The mix of risks and rewards in this article may feel finely balanced, so it is worth checking the underlying data, forecasts, and narratives yourself. To round out your view on ON Semiconductor, make sure you understand its 1 key reward and 3 important warning signs.

See What Else Is Out There

ON Semiconductor’s current 2% net margin, large one off loss of US$979.8m, and DCF value below the share price all highlight pressure on quality and value.

If those issues make you uncomfortable paying up for thin margins, it is worth quickly checking the 51 high quality undervalued stocks to find stocks where pricing and fundamentals look tighter.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.