Micron and SanDisk Stocks Surge as US Moves to Restrict Chinese Memory Chips

Key Facts

Amid escalating trade and geopolitical tensions between global powers, the semiconductor sector has emerged as a primary arena for industrial competition. Shares of Micron rose 5.9% and SanDisk gained 8.9% following comments from US Commerce Secretary Howard Lutnick. These movements follow reports that the Trump administration is actively discouraging American companies from using Chinese-made memory chips, fueling optimism for a shift in demand toward domestic and allied manufacturers.

This development reflects a shift in global supply chains favoring US firms involved in the AI hardware trade. Per market data, Micron (MU) closed at $1022.40 on August 17, 2026, holding near its daily high. Meanwhile, SanDisk (SNDK) stood at $1641.11 at the close of August 14, 2026, as investors react positively to Washington's protectionist trade policies regarding the technology sector.

Traders should watch for support levels on MU near $995.13, the daily low from August 17, 2026, to gauge the sustainability of this upward momentum. While the upcoming economic calendar shows no direct catalysts for the chip sector in the next few days, markets will remain sensitive to further official statements that could solidify this restrictive trade stance against Chinese competitors.