Micron Technology Inc.

(NASDAQ:MU) stock rose nearly 4% in Tuesday's premarket session as investors continued rotating into semiconductor stocks amid improving risk appetite.

The gains came as tight global memory supply, sustained artificial intelligence infrastructure spending and a broader chip-sector rebound continued to support sentiment.

Nasdaq futures rose 0.59%, while S&P 500 futures added 0.15%.

Micron Closes In On SK hynix The rally also followed fresh industry data showing Micron is rapidly gaining ground in the global DRAM market as AI-driven memory demand reshapes the competitive landscape.