Micronvs.Seagate
MU 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.
Micron is about 6.8× larger than Seagate by market cap; Micron trades at the lower P/E (14.2 vs 55.3); year to date, Micron leads (+281.2% vs +193.2%).
Side by side
| MU | STX | |
|---|---|---|
| Market cap | $1.2T | $176B |
| Price | $1,035.84 | $774.83 |
| Today | −4.8% | −4.1% |
| Return YTD | +281.2% | +193.2% |
| Return 1Y | +485.9% | +258.9% |
| Since June 26, 2026 | −8.5% | −13.9% |
| P/E | 14.2 | 55.3 |
| P/S | 9.0 | 14.4 |
| P/B | 8.7 | 81.3 |
Data as of 2026-10-08 · updates daily after U.S. close
Since June 26, 2026: the change in the closing price, from the daily closes Sectivia records itself since that date.
The two companies
MicronMU
America's only large memory manufacturer, third in HBM, selling DRAM and NAND broadly into data centres.
Full MU 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 MU & STX comparisons
Other head-to-heads in the Chips & accelerators segment.