Monolithic Powervs.ON Semiconductor
MPWR vs ON · 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.
Monolithic Power is about 2.1× larger than ON Semiconductor by market cap; ON Semiconductor trades at the lower P/E (51.8 vs 86.8); year to date, Monolithic Power leads (+41.8% vs +32.8%).
Side by side
| MPWR | ON | |
|---|---|---|
| Market cap | $69.8B | $32.6B |
| Price | $1,304.15 | $72.51 |
| Today | +1.5% | +0.8% |
| Return YTD | +41.8% | +32.8% |
| Return 1Y | +52.3% | +38.7% |
| P/E | 86.8 | 51.8 |
| P/S | 21.3 | 5.3 |
| P/B | 17.9 | 4.5 |
Data as of 2026-08-26 · updates daily after U.S. close
The two companies
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 →ON SemiconductorON
Electric cars and factory automation are the end markets for its silicon carbide power semiconductors and image sensors.
Full ON profile →More MPWR & ON comparisons
Other head-to-heads in the Chips & accelerators segment.