Why did ALAB move on Jun 11, 2026?
20:05 ET · AI-sourced explanation · gemini-flash-latest
Astera Labs (ALAB) surged in after-hours trading on June 11, 2026, following the announcement that it would be added to the Nasdaq-100 Index. The index inclusion, which was scheduled to take effect prior to the market open on June 22, 2026, triggered immediate buying pressure as passive funds and exchange-traded products prepared to rebalance their portfolios to match the benchmark.