SpaceX Joins 401(k) Indexes — OpenAI, Anthropic Next

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- SpaceX priced its IPO at $135 per share on June 12, 2026, climbed roughly two-thirds to about $225 (near a $3 trillion valuation) within four trading days, then slid more than 30% to roughly $153 — a roughly $2 trillion market cap.
- SpaceX entered the CRSP US Total Market Index on June 18 — just five trading days after its listing — triggering an estimated $4–7 billion in passive buying through Vanguard's VTI and other broad-market funds.
- FTSE Russell is set to add SpaceX to the Russell 1000 on June 29, extending the stock's reach into additional index-tracking portfolios.
- The same index inclusion mechanics that delivered SpaceX into retirement accounts are positioned to sweep OpenAI and Anthropic in once they go public, since they meet the same benchmark criteria.
- The exposure is automatic — millions of retirement savers now hold SpaceX in their 401(k)s simply by owning a broad-market index fund, without ever buying a share directly.
Why it matters: Millions of Americans who own broad-market funds now hold SpaceX exposure they didn't choose, and the same pipeline guarantees OpenAI and Anthropic a built-in floor of demand the moment they list. For 401(k) savers, it means instant exposure to newly public giants; for those AI companies, a pre-built buyer base waiting at the index gate.
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