On June 23, Monolithic Power Systems fell 6.98% in regular trading, trading at $1473.985/share, with turnover of $196 million.

The decline was driven by a broad sell-off across the semiconductor sector, with Micron Technology down 9.07%, Marvell Technology down 5.86%, Advanced Micro Devices down 4.96%, Intel down 2.80%, and NVIDIA down 2.56%, creating significant sector-wide drag on the stock.

The stock had previously surged after NVIDIA announced its next-generation 800V power architecture partner list, with MPS named among the officially endorsed suppliers. This positioning as a core supplier in the AI data center power conversion chain, combined with ongoing power management IC price hikes and plans to further expand pricing adjustments in July, had propelled the stock sharply higher in recent sessions. The rapid prior appreciation intensified profit-taking pressure, with multiple rounds of selling now accelerating as the broader sector turned decisively weaker.

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