SpaceX is joining one of Asia’s most watched cross-border tech benchmarks. Hang Seng Indexes Company confirmed that Space Exploration Technologies Corp. will be added to the Hang Seng HK-US Tech Index following its public listing on June 12, 2026.
The move expands the index’s US-listed roster from seven companies to eight. Those original seven, informally known as the “Magnificent 7,” include names like Amazon, Apple, and Nvidia. With SpaceX’s arrival, the grouping picks up a new informal label: “M7+1.”
How the rebalancing works
SpaceX will begin trading under the ticker SPCX.US on June 12. After SpaceX completes its seventh trading day, projected for June 20, the adjusted weightings among US constituents will be calculated. Those new equal weights officially take effect on June 29, which lines up with SpaceX’s 11th trading day.
Once the dust settles, all eight US names will carry equal representation. That equal-weighting approach is worth noting. Most major indices weight by market capitalization, meaning the biggest companies dominate the index’s performance. Equal weighting is a deliberate choice that gives smaller constituents the same pull as the giants.
