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S&P 500

MPWR

Monolithic Power Systems

latest move
-8.99%
2026-10-22
10 sessions · 2026-07-14 → 2026-10-22 · avg 10.14% · largest 18.64%

Monolithic Power Systems designs semiconductor power electronics, including DC-to-DC converters used in cloud and on-premises servers, AI systems, memory, storage, notebooks and network infrastructure. It sells across Asia, Europe, the United States and Japan.

Price history

stitched from the price window carried by each report

Every session it moved

newest first
2026-10-22Neutral
-8.99%24 hours change

Chip selloff after Lam Research warned of supply constraints on its October 21 call; MPWR fell 8.99% on 2.18x volume.

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2026-10-13Neutral
-10.46%weekly change

Shares fell 4.84% on Oct 12 amid a chip selloff and Vicor's USITC patent probe naming Monolithic as a respondent.

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2026-10-02Bullish
+5.79%24 hours change

The stock surged as falling U.S. Treasury yields, triggered by weak employment data, sparked a rally across high-growth chip equities.

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2026-09-25Bullish
+12.29%weekly change

The stock surged following a bullish StoneX analyst initiation, a manufacturing deal with GlobalFoundries, and a dividend confirmation.

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2026-09-24Bullish
+16.38%weekly change

The stock surged due to a capacity agreement with GlobalFoundries, a StoneX Buy rating initiation, and a semiconductor sector rally.

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2026-09-23Bullish
+18.64%weekly change

MPWR surged due to strong AI demand, a GlobalFoundries manufacturing deal, bullish analyst ratings, and a rebound off mid-month lows.

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2026-09-22Bullish
+8.06%24 hours change

StoneX initiated coverage with a Buy rating and $1,800 target, alongside momentum from a GlobalFoundries manufacturing partnership.

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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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