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 4.2× larger than Monolithic Power by market cap; Monolithic Power trades at the lower P/E (86.8 vs 278.1); year to date, Arm Holdings leads (+118.4% vs +41.8%).
Side by side
| ARM | MPWR | |
|---|---|---|
| Market cap | $290B | $69.8B |
| Price | $241.56 | $1,304.15 |
| Today | +1.2% | +1.5% |
| Return YTD | +118.4% | +41.8% |
| Return 1Y | +73.1% | +52.3% |
| P/E | 278.1 | 86.8 |
| P/S | 56.3 | 21.3 |
| P/B | 33.6 | 17.9 |
Data as of 2026-08-26 · updates daily after U.S. close
The two companies
Arm HoldingsARM
Licensing, not manufacturing: the CPU architectures and instruction sets (Cortex, Neoverse) that nearly every mobile and server chip is built around come from Arm, which takes a royalty on each chip produced.
Full ARM profile →Monolithic PowerMPWR
Everything here is power delivery: the chips and modules that feed processors in AI server racks, with cars and industrial equipment taking the same parts.
Full MPWR profile →More ARM & MPWR comparisons
Other head-to-heads in the Chips & accelerators segment.