SpaceX went public on June 12, and within weeks it started showing up in places most people don’t actively manage: their retirement accounts. Thanks to newly fast-tracked index eligibility rules, the largest IPO in history is now being absorbed into the passive funds that underpin millions of 401(k)s, IRAs, and target-date retirement portfolios across the country.

The company raised $75 billion at $135 per share, landing an initial valuation somewhere between $1.75 trillion and $1.8 trillion. On day one, shares climbed 19%. In the days that followed, the stock tacked on another 40%-plus, briefly clearing $200.

How SpaceX is landing in your portfolio

Major index providers, including Nasdaq, FTSE Russell, and CRSP, have implemented new fast-track regulations that allow freshly listed companies to be added to prominent benchmarks far more quickly than traditional timelines permitted. SpaceX is now being folded into the Russell 1000 and Nasdaq-100 within roughly 5 to 20 trading days of its listing.

If you own a total market index fund, a Nasdaq-100 ETF, or a broad-market mutual fund in your retirement account, you’re getting SpaceX exposure automatically. No action required on your part.