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5 Green Days In A Row: Monolithic Power Systems Stock Is Up 21%

Trefis | Sep 23, 2026 4:34 AM EDT

A five-day surge has lifted a stock that already carried a steep valuation premium, raising questions for investors watching the run. A five-day rally in Monolithic Power Systems (MPWR) has added about $12 billion to the company’s market value. The stock has now moved higher for 5 consecutive trading days, producing a cumulative gain of […]

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