Stock Market Today, June 25: Micron Surges, Apple Falls, and Inflation Data Weighs on Stocks

Micron Technology jumped 16% on June 25, 2026, driven by strong demand for AI chips, while Apple dropped 6% after announcing price increases for MacBooks and iPads. The PCE inflation index climbed to 4.1%, a three-year high, intensifying trader concerns about Federal Reserve rate hikes ahead.

The sell-off extended across the Magnificent Seven, with all members posting declines. Palantir hit a 52-week low as growth stocks absorbed the inflation shock. The 4.1% PCE reading marks the highest level since 2023 and reinforces expectations that the Fed may resume tightening.

Micron's 16% surge reflects accelerating AI infrastructure buildout, while Apple's 6% tumble demonstrates consumer-facing tech remains vulnerable to pricing power tests in a high-rate environment. The divergence highlights sector rotation as traders differentiate between enterprise AI beneficiaries and consumer hardware plays facing margin pressure.