9-Day Rally Sends ON Semiconductor Stock Up 29%

ON: ON Semiconductor logo
ON
ON Semiconductor

ON Semiconductor (ON) – a provider of intelligent sensing and power solutions for electrification – hit a 9-day winning streak, with cumulative gains over this period amounting to 29%. The company’s market cap has surged by about $7.1 Bil over the last 9 days and currently stands at $32 Bil.

Is this an opportunity or a trap? There are several things to fear in ON stock given its overall Weak operating performance and financial condition. This isn’t appropriately reflected in the stock’s Moderate valuation which is why we think it is Unattractive (For details, see Buy or Sell ON).

But here is the interesting part. You are reading about this 29% move after it happened. The market has already priced in the news. To catch the next winner before the headlines, you need predictive signals, not notifications. High Quality Portfolio is based on an architecture that includes such signals.

Trefis: ON Stock Insights

Returns vs S&P 500

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The following table summarizes the return for ON stock vs. the S&P 500 index over different periods, including the current streak:

Return Period ON S&P 500
1D 10.4% 0.3%
9D (Current Streak) 28.5% 7.0%
1M (21D) 31.1% 4.8%
3M (63D) 31.9% 1.7%
YTD 2026 47.6% 2.9%
2025 -14.1% 16.4%
2024 -24.5% 23.3%
2023 33.9% 24.2%

However, big gains can follow sharp reversals – but how has ON behaved after prior drops? See ON Dip Buyer Analysis to learn more.

Gains and Losses Streaks: S&P 500 Constituents

There are currently 70 S&P constituents with 3 days or more of consecutive gains and 49 constituents with 3 days or more of consecutive losses.
 

Consecutive Days # of Gainers # of Losers
3D 11 36
4D 45 4
5D 7 6
6D 0 3
7D or more 7 0
Total >=3 D 70 49

 
 
Key Financials for ON Semiconductor (ON)

Last 2 Fiscal Years:

Metric FY2024 FY2025
Revenues $7.1 Bil $6.0 Bil
Operating Income $1.9 Bil $751.1 Mil
Net Income $1.6 Bil $121.0 Mil

Last 2 Fiscal Quarters:

Metric 2025 FQ3 2025 FQ4
Revenues $1.6 Bil $1.5 Bil
Operating Income $284.0 Mil $258.9 Mil
Net Income $255.0 Mil $181.8 Mil

While ON stock looks attractive given its winning streak, investing in a single stock without detailed, thorough analysis can be risky. The Trefis High Quality (HQ) Portfolio, with a collection of 30 stocks, has a track record of comfortably outperforming its benchmark that includes all 3 — the S&P 500, S&P mid-cap, and Russell 2000 indices. Why is that? As a group, HQ Portfolio stocks provided better returns with less risk versus the benchmark index; less of a roller-coaster ride, as evident in HQ Portfolio performance metrics.