Monolithic Power Systems, Inc. (MPWR)

3 members of Congress have disclosed trading MPWR — 1 purchase and 2 sales worth an estimated $24,000. Most recent disclosure: Oct 20, 2025.

Monolithic Power Systems, Inc. provides semiconductor-based power electronics solutions in China, Taiwan, South Korea, Southeast Asia, Europe, the United States, Japan, and internationally. The company offers direct current (DC) to DC solutions to convert and control voltages within a range of electronic systems, such as cloud-based and on-premises CPU servers and workstations, AI systems, memory, storage solutions, notebooks, infotainment, power sources, home appliances, network infrastructure, and satellite communications. It also provides alternating current (AC) to DC; driver metal-oxide-semiconductor field-effect transistors; power management integrated circuits (ICs); and current limit switch and lighting control products. The company serves storage and computing, enterprise data, automotive, communications, consumer, and industrial end markets through third-party distributors and value-added resellers. Monolithic Power Systems, Inc. was incorporated in 1997 and is based in West Palm Beach, Florida.

Company website ↗

• P/E ratio (94.3) — how many dollars you pay for each $1 of MPWR's yearly profit. That's high, so the market expects strong growth (and you're paying up for it).
• ROE (19.57%) — how efficiently the company turns shareholders' money into profit. This is a middling level.
• Profit margin (22.98%) — of every $1 in sales, this is what's left as profit after all costs.
• Dividend yield (0.61%) — the cash payout you'd earn per year as a % of the share price, on top of any price gains.