Arm Holdingsvs.Monolithic Power
ARM vs MPWR · 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.
Arm Holdings is about 5.2× larger than Monolithic Power by market cap; Monolithic Power trades at the lower P/E (97.6 vs 385.9); year to date, Arm Holdings leads (+195.8% vs +49.2%).
Side by side
| ARM | MPWR | |
|---|---|---|
| Market cap | $349B | $66.5B |
| Price | $323.39 | $1,352.74 |
| Today | −1.4% | −1.6% |
| Return YTD | +195.8% | +49.2% |
| Return 1Y | +117.7% | +82.7% |
| P/E | 385.9 | 97.6 |
| P/S | 70.9 | 22.5 |
| P/B | 42.1 | 18.1 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
Arm HoldingsARM
Designs the chip architectures and instruction sets licensed into nearly every mobile and server chip — earning royalties per chip produced.
Full ARM profile →Monolithic PowerMPWR
Analog power-management chips that control power delivery in AI servers, data centers, cars and industry — a critical part of modern AI racks.
Full MPWR profile →More comparisons in Chips & accelerators
See where ARM and MPWR sit in the full AI & digital infrastructure map — every segment from suppliers to end markets.Open the AI value chain →