Skip to navigationSkip to main contentSkip to right columnADVERTISEMENTETF.com StaffThu, June 4, 2026 at 10:10 AM GMT+2 7 min readETF Investing ToolsThe SpaceX IPO is no longer a distant event — it’s happening June 12. At an estimated $1.75 trillion valuation, SpaceX (ticker: SPCX) is set to become the largest company ever to go public, dwarfing Saudi Aramco’s 2019 IPO and entering the market larger than all but a handful of the world’s biggest corporations.For ETF investors, the headline isn’t the IPO itself — it’s what happens immediately after. Index rules will automatically funnel tens of billions of dollars from passive funds into SpaceX shares, whether investors realize it or not.The Forced Buyers: S&P 500 and Nasdaq-100 ETFsSpaceX is expected to enter the S&P 500 at roughly a 0.5% weight. That sounds small, but the S&P 500 is the benchmark for trillions in indexed assets. Every ETF tracking the index will be required to purchase SpaceX shares upon inclusion. The largest affected funds:VOO (Vanguard S&P 500 ETF, $1,003.51B AUM): Would need to buy roughly $5B in SpaceXIVV (iShares Core S&P 500 ETF, $859.73B AUM): Similar forced purchaseSPY (SPDR S&P 500 ETF Trust, $787B AUM): The most liquid S&P 500 ETFSPYM (SPDR Portfolio S&P 500 ETF, $149.68B AUM)The Nasdaq-100 follows on a slightly different timeline. A revised Nasdaq methodology effective May 1, 2026 allows any newly listed company ranked among the top 40 by market capitalization to enter the Nasdaq-100 after just 15 trading days — with the prior free-float requirement eliminated. That puts SpaceX into the index around July 6, triggering additional forced buying from:QQQ (Invesco QQQ Trust, $495.70B AUM): The world’s most-traded tech ETFQQQM (Invesco NASDAQ 100 ETF, $98.48B AUM): Lower-cost alternative for long-term investorsAll told, analysts estimate that S&P 500 and Nasdaq-100 index funds will need to absorb between $22 billion and $27 billion in SpaceX shares on the days of their respective index inclusions. That forced buying is expected to create significant upward price pressure independent of any fundamental valuation call.Space-Themed ETFs: Already PositionedSeveral thematic ETFs have been building exposure to the SpaceX IPO story for months.NASA (Tema Space Innovators ETF) is the biggest story. The fund launched in late March 2026 and crossed $1 billion in assets in just 37 trading days. By the end of May it held $2.58 billion — one of the fastest asset-gathering runs in ETF history. NASA is explicitly built around the commercial space economy and is widely seen as the premier vehicle for investors who want concentrated SpaceX exposure alongside other space companies.Terms and Privacy PolicyPrivacy & Cookie SettingsMore Info