The first wave is straightforward: VTI, VT and VXF all sit on Vanguard’s fast-inclusion track for new listings, Vanguard said on June 10, 2026. Each is expected to include SpaceX shortly after the fifth trading day closes.

VOO is a different animal. Vanguard says its S&P 500 ETF faces an approximately 12-month wait, subject to a profitability screen, Vanguard said on June 10, 2026. If VOO is the main U.S. equity holding, SpaceX is not arriving anytime soon.

The schedule comes from the index rules, not from any special treatment of SpaceX. Vanguard says its index products will buy shares in the days and weeks after the IPO launch, and that the initial additions are expected to be limited, Vanguard said on June 10, 2026.

SpaceX is expected to have only around 5% of its shares available to the public at launch, Vanguard said on June 10, 2026. That is the main reason the first index weight will be small, even if the company’s valuation is huge.

Vanguard says SpaceX’s potential valuation is reported to be more than $1 trillion, but float-adjusted indexing only counts the shares that can actually be traded, Vanguard said on June 10, 2026. On paper, the company looks enormous. In the index, it begins much smaller.

That weight can grow over time. As early investors, founders and employees sell more shares in the months after the IPO, the free float expands and the stock’s index weight can rise organically, Vanguard said on June 10, 2026. The first inclusion is only the beginning.

For holders of VTI, VT and VXF, the practical answer is simple: do nothing. Vanguard says the expected result is limited portfolio change, low turnover and minimal tax impact, with little effect on tracking, Vanguard said on June 10, 2026.

That is the point of a rules-based index fund. SpaceX gets added when the index says it should, and the fund adjusts without making a spectacle of it. Investing has enough drama already.

The bigger point is that a stock’s first day as a public company is not usually the day its index weight becomes meaningful. If SpaceX’s float expands in the months ahead, these funds will pick up more exposure automatically, Vanguard said on June 10, 2026.

That is the clean, boring route. The messier one has been the hunt for bigger private SpaceX exposure through niche funds.

Morningstar said in early June that four funds holding private SpaceX stakes, Baron Partners, Baron First Principles ETF, ERShares Private-Public Crossover ETF and Tema Space Innovators ETF, pulled in a combined $7.9 billion in net inflows in May alone, Morningstar reported on June 3, 2026. The irony is hard to miss: more money chasing scarce SpaceX exposure tends to shrink the exposure per investor.

Morningstar’s figures show how quickly that can happen. As of May 29, Baron First Principles ETF held SpaceX at 1.9% of net assets and Tema Space Innovators at 6.5%, Morningstar reported on June 3, 2026. Baron Partners held a roughly 31.7% stake as of April 30, but Morningstar noted that it also took in about $3.8 billion of additional inflows through May, which would have reduced the weight as a share of assets even if the dollar stake stayed unchanged, Morningstar reported on June 3, 2026.

ERShares’ XOVR has been the most visible example of how quickly the math can swing around. Morningstar said the ETF had climbed above 21% of net assets in SpaceX after roughly $630 million in outflows and portfolio losses magnified the position, Morningstar noted on February 23, 2026. By early March, around 37% of the ETF was invested in SpaceX and the stake had climbed above 40% in recent days, according to the Financial Post. The SEC declined to comment, and ERShares said it had a plan but did not share the details, Financial Post reported on March 6, 2026.

That is not a compliment to the strategy. It also raised the obvious regulatory question, since open-ended funds are limited to 15% in illiquid securities, Financial Post reported on March 6, 2026.

The performance record is the harsher argument. Morningstar said XOVR lost 4.6% annually from December 2024 through February 2026, the period since it initiated its SpaceX position, while the Nasdaq 100 and S&P 500 returned 15.5% and 13.0% per year, Morningstar reported on February 23, 2026. SpaceX’s private valuation moved higher over that stretch, but the fund still lost money.

Morningstar also said ERShares’ ETF returned 10.7% annually from its November 2017 inception through May 31, 2026, versus 18.4% for the Russell 1000 Growth Index, Morningstar found on June 3, 2026. Since initiating the SpaceX SPV in December 2024, it gained 6.9% annually versus 18.3% for the same benchmark, Morningstar found on June 3, 2026.

Morningstar’s Jeffrey Ptak put the structural problem plainly, saying the ETF was “saddled with a huge concentration in a hard-to-trade-and-value security,” and that it made him “more dubious about the proposition of stuffing hard-to-trade assets into daily-liquidity vehicles like ETFs,” Financial Post reported on March 6, 2026. The warning still applies after the IPO. If investors who wanted pre-IPO access leave once trading begins, funds may have to meet redemptions with liquid holdings while the SpaceX stake remains subject to SPV limits, which could increase concentration in the remaining portfolio, Morningstar warned on June 3, 2026.

For most investors, the answer is refreshingly unglamorous. VTI, VT and VXF are set to pick up SpaceX soon after the IPO, with initial weights of 1% or less, low turnover and minimal tax impact, Vanguard said on June 10, 2026. VOO will lag by roughly a year, subject to profitability.

If the goal is simply to own SpaceX through a broad market fund, patience does the rest. As float expands in the months after the IPO, SpaceX’s weight in float-adjusted indexes can rise without any special trade, Vanguard said on June 10, 2026. That is the part to watch after the first inclusion, not the first inclusion itself.