Silicon Motion Technology's stock surged 5.20% during the night session, extending gains following a significant rally earlier in the trading day.

The sharp price movement was driven by the company's exceptional first-quarter 2026 financial results, which significantly exceeded analyst expectations. Silicon Motion reported a year-over-year surge in both non-GAAP earnings and sales, with revenue more than doubling compared to the same period last year.

Adding to the positive momentum, the company provided strong guidance for the second quarter, forecasting revenue well above Wall Street projections. The outstanding performance was attributed to robust growth across all major product lines, particularly in embedded storage controllers and solutions for automotive and AI infrastructure customers.