SpaceX Stock Joins Major Index Funds—What Regular Investors Need to Know Now
By Markets & Investing DeskUpdated Nov 10, 2026
Key takeaways
- SpaceX (SPCX) entered the CRSP US Total Market Index and the S&P Total Market Index, so VTI and ITOT bought shares.
- Major index providers adjusted their rules to fast-track SpaceX instead of making the new listing wait.
- Because of its limited float, SpaceX makes up well under 1% of VTI and ITOT, so big SPCX moves barely affect them.
- Joining the S&P Total Market Index does not put SpaceX in the S&P 500, which a committee decides separately.
SpaceX has been added to major indexes. Its stock (SPCX) now sits in total-market benchmarks from the Center for Research in Security Prices (CRSP) and S&P Dow Jones Indices, and the large ETFs that track them have bought shares. Investors who own those funds now have a small stake in SpaceX even if they never bought it directly.
Which indexes and funds hold SpaceX
An index fund does not choose stocks; it holds what its benchmark holds. When CRSP added SpaceX to the CRSP US Total Market Index, Vanguard’s Total Stock Market ETF (VTI) had to buy the stock to keep matching it. When S&P Dow Jones added it to the S&P Total Market Index, BlackRock’s iShares Core S&P Total U.S. Stock Market ETF (ITOT) did the same. These two index families were among the first to include the company.
The speed matters. Index providers usually make a newly listed company wait before it can join, but interest in SpaceX ahead of its record IPO led major providers to adjust their rules and fast-track the stock.
How much SpaceX is in VTI and ITOT
Total-market funds hold thousands of companies and weight each one by its market value, typically adjusted for the shares actually available to trade (the float). A newly public company with a limited float gets a smaller weight than its headline valuation suggests, which is why SpaceX makes up well under 1% of VTI and ITOT. A large move in SPCX barely changes what those funds return. The exact weight shifts with the share price and with any index rebalancing.
What comes next
Other index families were expected to follow:
- FTSE Russell and MSCI. Both were set to add SpaceX shortly after the first wave. Funds tracking their benchmarks, including Vanguard’s Total World Stock ETF (VT), which follows a FTSE global index, would buy once those additions take effect.
- Nasdaq 100. SpaceX could join as soon as early July. With only about 100 members, the index would give it a much larger weight than a total-market fund does, so funds tracking it would feel bigger swings in either direction.
- S&P 500. Membership in the S&P 500, the benchmark behind funds such as VOO, is decided separately by a committee whose eligibility standards have historically included a profitability test on recent reported earnings. Inclusion in the S&P Total Market Index does not put SpaceX in the S&P 500.
Why it matters to you
Total-market funds are common holdings in 401(k)s, IRAs and other retirement accounts. With SpaceX inside them, its performance now reaches a much wider group of investors than those who bought shares at the IPO.
Index inclusion can bring a short-term boost. In the days before an addition takes effect, funds that must own the stock buy it, and that demand has tended to lift prices. Over longer periods the record for hot new listings is less encouraging. Newly public stocks have historically tended to jump early, then fade and trail the broader market in their first few years.
For a diversified fund holder, that risk is small at current weightings. An investor who wants more SpaceX exposure has to buy the stock directly or use a narrower fund where it carries more weight, and either choice adds concentration risk.
