ON Semiconductorvs.Seagate
ON vs STX · both in Chips & accelerators, part of the AI & digital infrastructure value chain: Designs and builds the processors, accelerators and memory that train and run AI.
Seagate is about 6.4× larger than ON Semiconductor by market cap; ON Semiconductor trades at the lower P/E (51.8 vs 65.6); year to date, Seagate leads (+188.6% vs +32.8%).
Side by side
| ON | STX | |
|---|---|---|
| Market cap | $32.6B | $209B |
| Price | $72.51 | $821.67 |
| Today | +0.8% | +3.4% |
| Return YTD | +32.8% | +188.6% |
| Return 1Y | +38.7% | +399.1% |
| P/E | 51.8 | 65.6 |
| P/S | 5.3 | 17.1 |
| P/B | 4.5 | 96.4 |
Data as of 2026-08-26 · updates daily after U.S. close
The two companies
ON SemiconductorON
Electric cars and factory automation are the end markets for its silicon carbide power semiconductors and image sensors.
Full ON profile →SeagateSTX
No one ships more hard drives. The HAMR-based Mozaic platform lifts capacity per drive sharply as cloud and AI data pile up.
Full STX profile →More ON & STX comparisons
Other head-to-heads in the Chips & accelerators segment.
See where ON and STX sit in the full AI & digital infrastructure map: every segment from suppliers to end markets.Open the AI value chain →