Seagatevs.Western Digital
STX vs WDC · 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 and Western Digital are similar in size by market cap; Western Digital trades at the lower P/E (27.7 vs 85.8); year to date, Western Digital leads (+238.2% vs +230.6%).
Side by side
| STX | WDC | |
|---|---|---|
| Market cap | $204B | $181B |
| Price | $910.34 | $582.59 |
| Today | +2.3% | +0.8% |
| Return YTD | +230.6% | +238.2% |
| Return 1Y | +530.0% | +795.5% |
| P/E | 85.8 | 27.7 |
| P/S | 18.5 | 15.3 |
| P/B | 186.4 | 18.7 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
SeagateSTX
The world's largest hard drive manufacturer with new HAMR technology that significantly increases capacity — driven by cloud and AI data growth.
Full STX profile →Western DigitalWDC
Manufacturer of hard drives for data centers. AI is creating record demand for massive, low-cost storage of training data.
Full WDC profile →More comparisons in Chips & accelerators
See where STX and WDC sit in the full AI & digital infrastructure map — every segment from suppliers to end markets.Open the AI value chain →