S&P 500

MPWR

Monolithic Power Systems, Inc.

latest move

-5.85%

2026-08-18

3 sessions · 2026-07-14 → 2026-08-18 · avg 6.93% · largest 8.35%

Monolithic Power Systems, Inc. is a high-performance semiconductor company that designs, develops, and markets proprietary, silicon-based power electronics solutions.

Price history

stitched from the price window carried by each report

Every session it moved

newest first

2026-08-18Bullish

-5.85%24 hours change

The stock fell 5.85% due to a broad semiconductor sell-off driven by surging Treasury yields, high oil prices, and valuation scrutiny.

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2026-07-31Bullish

+8.35%24 hours change

MPWR beat Q2 earnings and revenue estimates, raised Q3 guidance, and expanded its share buyback program by $500 million.

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2026-07-14Bullish

+6.58%24 hours change

The stock surged on cooler inflation data, IBM commentary confirming strong enterprise AI demand, and a Q2 earnings date announcement.

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