MPWR shares priced for years of AI data center expansion

Monolithic Power Systems reported first-quarter 2026 revenue of $804.2 million, up 26.1% year-over-year, while adjusted earnings per share rose 26.2% to $5.10. The stock closed at $1,328.80 on July 20, carrying a forward price-to-earnings ratio of 54.05 and a trailing multiple of 93.92.

Those figures highlight a stark valuation gap when compared to the company's peers. Analog Devices (NASDAQ:ADI) trades at roughly 26 times forward earnings, while Texas Instruments (NASDAQ:TXN) sits at about 38 times. The divergence shows investors are not rewarding MPWR for its recent quarter, but are instead pricing in several years of sustained, above-market expansion.

The bullish thesis rests entirely on the power demands of artificial intelligence infrastructure. AI servers consume far more electricity than standard hardware and require highly precise, complex circuitry to deliver that power cleanly. Because each new generation of AI chips draws more power, MPWR stands to benefit from two compounding trends: the industry-wide buildout of data centers and the increasing number of power components required inside each individual server.

The financial evidence supports this structural shift. MPWR’s Enterprise Data segment, which encompasses its AI server business, surged 97.7% year-over-year. This division now drives nearly 80% of the company's total revenue growth, making it the primary engine for the business.

Management is actively positioning the company to capture this demand. The firm recently raised its internal manufacturing capacity target from 4 billion units to 6 billion units, a substantial increase that signals expectations for massive upcoming order volumes. Furthermore, the recent dismissal of the Bel Power Solutions lawsuit has cleared a notable legal risk from the company's profile.

For market professionals, the underlying risk is clear. A trailing multiple nearing 94 leaves virtually no margin for error. If hyperscale cloud providers slow their capital expenditure on AI clusters, or if the power requirements of next-generation chips fail to scale as anticipated, MPWR's premium valuation will contract sharply.