On June 16, Monolithic Power Systems fell 3.24% in regular trading, trading at $1,591.6/share, with turnover of $150 million.

On the news front, the semiconductor sector experienced a broad-based sell-off, with Intel down 5.74%, Advanced Micro Devices down 4.16%, Marvell Technology down 2.44%, Micron Technology down 2.4%, and NVIDIA down 1.69%, creating significant sector-wide drag on the stock. The sector linkage effect weighed heavily on MPS despite its strong individual fundamentals.

The stock had previously surged after NVIDIA announced its next-generation 800V power architecture partner list, with MPS named among the officially endorsed suppliers. As a core component provider for AI data center power conversion chains, the company stood to benefit directly from the full-scale architecture upgrade. Additionally, the ongoing power management IC price hike cycle, with plans to expand pricing adjustments in July, had further boosted sentiment. The combination of prior rapid gains and renewed sector weakness has intensified technical selling pressure and profit-taking.

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