Micron Technology shares jumped 5% on Friday, riding a wave of optimism that swept the memory‑chip market after Taiwan Semiconductor Manufacturing Company posted stronger‑than‑expected results and raised its capital‑expenditure outlook. The rally was further fueled when director Teyin Liu disclosed a $7.82 million insider purchase.

Memory demand remains tight as data‑center and consumer electronics demand for DRAM and NAND grows. TSMC’s guidance signals a bullish cycle, and Liu’s sizable stake—about 23,000 shares versus his prior 2,700—suggests confidence from someone with deep industry experience.

Analysts note that Micron’s price surge mirrors gains in peers like Samsung and SK Hynix, reinforcing a sector‑wide rally. The insider buy adds weight to the narrative that memory stocks are poised for continued upside as supply constraints ease.

Investors will watch Micron’s Q2 earnings and any updates on its manufacturing expansion. If the company meets or beats guidance, the stock could continue to climb, but a slowdown in demand or supply chain hiccups might temper the current enthusiasm.