AI Storage Stocks Surge by 1 Trillion Won in One Day

Silicon Motion Technology ADR (NASDAQ: SIMO) closed at $246, up 8.29%, adding roughly $756 million (about ₩1.1 trillion) to its market capitalization. Trading volume surged past 1.67 million shares, and the stock climbed to a near 12-month high.

In its Q1 2026 results announced April 29, the company reported revenue of $342.1 million and a double-digit operating margin, delivering nearly triple-digit growth both sequentially and year-over-year. Strong demand for AI data-center and SSD flash controllers helped drive performance, and the stock has jumped about 40% in the week since the earnings release, highlighting Silicon Motion as a leading AI storage beneficiary.

Headquartered in Taiwan, Silicon Motion is a fabless semiconductor firm and one of the global leaders in NAND flash controllers for SSDs, smartphones, and embedded storage. After a failed acquisition attempt by MaxLinear, the company pursued an independent strategy, expanding supplies to memory manufacturers and cloud customers to directly capitalize on the AI infrastructure investment cycle.