Silicon Motion Technology's stock soared 5.02% in the night session, driven by positive company-specific developments and broader sector strength.

The company recently announced it successfully obtained ISO 26262 automotive functional safety process certification, covering functional safety management, system architecture, hardware and software development. This certification solidifies its competitive position in intelligent cockpit, ADAS, and AI-driven automotive storage systems.

Additionally, the semiconductor sector saw continued positive momentum, with peer Micron Technology rising 4.38%, bolstering storage chip sentiment. Fundamentally, Silicon Motion reported Q1 results that beat expectations with profits doubling and raised forward guidance. Management highlighted that under the AI wave, global storage chips face severe supply shortages expected to persist, supporting long-term demand.