US share futures gained strongly on June 25, 2026, following Micron Technology Inc.'s optimistic outlook, which reignited confidence in the artificial intelligence sector and drove a late rally on Wall Street. Contracts for the Nasdaq 100 soared over 2%, and those for the S&P 500 rose 0.7% in early Asian trading. An exchange-traded fund (ETF) tracking the Nasdaq 100 also saw a 1.5% gain after the close of regular trading. Micron, the largest US maker of computer memory chips, surged 13% after forecasting sales that topped analysts' estimates.
The semiconductor sector as a whole experienced a significant uplift. The VanEck Semiconductor ETF rose 5% in US premarket trading. Western Digital Corp. jumped 12%, Sandisk Corp. climbed 12%, and Seagate Technology Holdings PLC added 8.3%. Qualcomm also rallied 13% after increasing its fiscal 2029 non-handset revenue target from a previous forecast of $22 billion to $40 billion, further signaling robust growth in the chip industry driven by AI demand. Micron's fiscal third-quarter results exceeded analyst expectations, and the company provided optimistic guidance for the fourth quarter, with its stock jumping 15% in overnight trading.
Investors are now eagerly awaiting the Commerce Department's May Personal Consumption Expenditures (PCE) price index report, which is the Federal Reserve's preferred measure of inflation. This report, due at 8:30 a.m. ET, is expected to indicate cooling inflationary pressures, with market expectations suggesting a year-over-year increase of 4.1% for overall PCE and 3.4% for core PCE inflation. A lower-than-expected inflation reading could provide stability for tech stocks, while higher figures might renew concerns about interest rate paths. The decline in crude oil prices to near $69 a barrel is also seen as potentially dampening broader inflationary pressures.
