Monolithic Power Systems, Inc. (MPWR) closed at $1,226.88 on September 2, 2026, declining 3.23% over the prior 24-hour period. The move added to a string of losses that have weighed on the semiconductor company's shares in recent weeks.
Over the past seven days, MPWR has fallen 5.95%, while the 30-day decline stands at 9.00%. The sustained pressure has trimmed the company's market capitalization to $62.3 billion.
The broader slide places MPWR among the underperformers in its sector over the measured timeframes. No single catalyst was identified in the available data to account for the cumulative losses across the one-week and one-month windows.
At its current price of $1,226.88, the stock remains a closely watched name in the power management chip space, with the recent drawdown reflecting the scale of selling pressure that has built over the past month.
