Micron Earnings Spark Global Tech Rebound on AI Chip Demand

Micron Technology’s fiscal third-quarter results showed revenue more than quadrupling to $41.46 billion, well above the $35.84–36 billion range analysts had projected. The company guided for roughly $50 billion in the current quarter. Those figures, released after the close on June 24, 2026, triggered immediate buying in memory-chip and semiconductor stocks worldwide.

The central tension is whether the surge in high-bandwidth memory demand tied to AI infrastructure spending can be sustained given persistent supply constraints. Micron’s results reinforced the view that those constraints remain tight, lifting shares of SK Hynix more than 12 percent in Seoul and pushing the Kospi index up 5.42 percent to 8,930.30, its highest close since a brief dip below 9,000 earlier in the week. Samsung Electronics rose 5.29 percent.

In after-hours trading, Micron itself climbed as much as 18 percent. Qualcomm gained 10 percent after raising its non-handset revenue outlook. Equipment makers Lam Research, KLA and Applied Materials also advanced. European chip-related names such as ASMI, BE Semiconductor and Soitec posted similar gains.

SK Hynix separately filed to list American depositary receipts on Nasdaq, seeking to raise as much as 45.45 trillion won ($29.65 billion) through the sale of 17.79 million new shares. Trading is slated to begin July 10, subject to regulatory approval. The company said the listing would broaden its U.S. investor base and narrow the valuation gap with Micron.

Broader Asian markets followed the chip rally. Japan’s Nikkei 225 rose 4.61 percent and Taiwan’s TSMC added 0.63 percent. Futures on the S&P 500 and Nasdaq 100 each moved higher ahead of the May personal consumption expenditures inflation reading, the Federal Reserve’s preferred gauge.

Analysts cited by multiple outlets noted that hyperscale data-center spending continues to outpace available high-bandwidth memory supply, a dynamic expected to persist for several years. No major outlet provided independent verification of Micron’s capacity-expansion timelines or cost figures beyond the company’s own statements.