Apple shares dropped 6.1% Thursday, its sharpest one-day fall since April 2025. The iPhone maker's stock also trailed the S&P 500 by 6.1 percentage points, its biggest margin of underperformance against the benchmark since 2019, according to Dow Jones Market Data.

The trends that hit Apple today were the same ones that powered Micron stock after its earnings late Wednesday. Apple early Thursday raised prices on its Macs and iPads because demand for memory chips has sent their costs soaring.