SpaceX formally rebranded as SpaceXAI on 6 July, a day before its scheduled inclusion in the Nasdaq 100, cementing a strategic pivot that began with the acquisition of Elon Musk’s xAI startup in February. The name change, announced via social media, aligns the company’s identity with its stated ambition to build orbital and terrestrial AI data centres and to develop the Grok model in competition with OpenAI and Anthropic. The Nasdaq entry, effective Tuesday, comes just 15 days after the 12 June initial public offering that raised nearly $86bn—the largest in US history—and values the group at $2.1trn.

The inclusion triggers automatic share purchases from index funds and exchange-traded funds that track the Nasdaq 100, a universe with more than $587bn in benchmarked assets. J.P. Morgan estimates the rebalancing will generate $4.3bn in passive inflows. However, the immediate price effect is constrained by the company’s exceptionally small free float. Fewer than 5% of shares were sold in the IPO, and lock-up agreements prevent employees from selling for several months. Nasdaq adjusts member weights by free float and caps them at three times that adjusted value, meaning SpaceXAI will initially be treated as if its market capitalisation were roughly $300bn, giving it a weight of less than 1% in the index.

The end of the post-IPO quiet period has unleashed a wave of analyst initiations. Wall Street houses including Goldman Sachs, Morgan Stanley, BofA Securities, Citigroup and J.P. Morgan have all assigned their highest ratings. Morgan Stanley described the company as “AI’s final frontier,” while Goldman analysts argued that space, connectivity and AI each represent multi-trillion-dollar opportunities over a five-year horizon. RBC, Bernstein and Stifel also launched coverage with top ratings, citing the potential of the fully reusable Starship rocket. Morningstar struck a more cautious note, pegging fair value at about $780bn and pointing to uncertainty around the AI business. Viewed from Europe, the exuberance contrasts with a more reserved mood: Le Temps reported that Franco-German defence manufacturer KNDS postponed its own IPO in late June after struggling to convince investors of a valuation above €12bn, underscoring a transatlantic divergence in risk appetite.

Speculation about a possible SpaceXAI–Tesla merger has intensified on shareholder platforms and in financial media. A Kalshi prediction market implies a roughly 50% probability of a combination before May 2027, though neither company has confirmed talks. The next factual milestone is the gradual expiry of employee lock-up periods over the coming year, which will increase the free float and could lead to a heavier index weighting. S&P Global has declined to create a fast-track process for the S&P 500, meaning inclusion in the world’s most widely tracked benchmark is at least a year away.