Micron surges more than 30% on week as memory chip rally goes parabolic

The Micron Technology offices in San Jose, California, Dec. 16, 2025. David Paul Morris | Bloomberg | Micron Technology shares caught fire this week amid a global shortage of memory chips, with momentum driving the stock on surging enthusiasm across the semiconductor sector. Shares were up almost 14% to $734 in trading on Friday as of 2:20 p.m. ET. The stock has gained about 35% on the week and more than 80% in the past month. Micron is on track for its best week since December 2008, when it was trading below $5 a share in the wake of the Great Recession. The company's market cap is currently above $820 billion, according to LSEG. Stock Chart Icon Stock chart icon Micron Technology in the past five days Micron isn't alone among the chipmakers . Shares of AMD were up 24% on the week as the company's market cap crossed the $700 billion threshold. Intel has jumped 24% on the week and has more than doubled over the past month in a widely touted comeback for the CPU maker. Demand for memory chips is emerging as the hallmark of the current phase of the AI buildout, driven by total capex from the hyperscalers that could surpass $1 trillion by the end of next year, according to Bank of America and Evercore. While graphics processing units (GPUs) have been the hardware focus of the AI buildout so far, memory, storage and CPUs have been increasingly stealing the limelight. …