SpaceX poised for index fund boost with 911.5M shares unlocked

Broad-market index funds in U.S. retirement accounts will likely increase holdings in SpaceX (SPACE) due to the unlocking of 911.5 million shares on August 6, 2026. Despite a 31% decline in July 2026, this float expansion could raise SpaceX's weight in the Nasdaq-100 from about 1% to over 3.5%. Additionally, the expansion may increase SpaceX's market capitalization by 2.43 times, positioning it among the top 100 holdings in the Russell 1000 index. These changes indicate that passive demand for SpaceX stock might rise even as insiders begin selling shares, which is significant for investors to monitor.