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Monolithic Power Systems, Inc. (MPWR), headquartered in Kirkland, Washington, designs, develops, markets, and sells semiconductor-based power electronics solutions for the storage and computing, automotive, enterprise data, consumer, communications, and industrial markets. With a market cap of $31.7 billion, the company offers power management IC, isolated gate drivers, power modules, battery and chargers, load switches, inductors, analog input devices, sensors, motor drivers and controllers, and electronic components.
Shares of this analog and mixed-signal chipmaker have underperformed the broader market over the past year. MPWR has declined 11.3% over this time frame, while the broader S&P 500 Index ($SPX) has rallied nearly 10.2%. However, in 2025, MPWR’s stock rose 11.9%, surpassing the SPX’s 1.3% dip on a YTD basis.