Alpha and Omega Semiconductor is trading 6.31% up at $26.80 amid strong semiconductor-sector momentum and broader risk-on sentiment.
- No fresh company-specific announcement dated September 18, 2026 was identified.
- The latest notable release was the September 8 launch of new 600V αMOS E2™ super-junction MOSFETs, which appears too dated to explain this morning’s move directly.