The S&P 500 SpaceX exclusion is now official, and for the roughly $2 trillion parked in the two largest S&P 500 ETFs alone, that means no exposure to the biggest IPO in market history for at least a year, and possibly longer.
| Detail | Value |
|---|---|
| SpaceX IPO valuation | ~$1.77 trillion |
| Intraday market cap (Friday) | Above $2 trillion |
| S&P 500 seasoning requirement | 12 months (unchanged) |
| Earliest S&P 500 inclusion | Mid-2027 |
| SpaceX net loss (latest quarter) | $4.28 billion |
| Vanguard VOO + BlackRock IVV AUM | ~$2 trillion combined |
SpaceX began trading on the Nasdaq on Friday under the ticker SPCX. Shares climbed above a $2 trillion market cap intraday. The S&P 500 index committee, which sets the rules for the benchmark tracked by hundreds of passive funds, held firm on its standard 12-month waiting period before a newly public company can be added.
The Nasdaq and Russell index committees moved in the opposite direction, updating their rules to add SpaceX sooner. That split decision is already reshaping the competitive landscape between the benchmarks.
What the S&P 500 SpaceX Exclusion Means for VOO and SPY Holders
If you own Vanguard VOO, BlackRock IVV, or State Street SPY, you are not getting SpaceX. Not this year. The index committee also kept its profitability test in place, which creates a second hurdle: SpaceX reported a net loss of $4.28 billion in its most recent quarter, a figure disclosed in its S-1 prospectus. That means the company could be sitting out the S&P 500 well past the initial 12-month window, even if it clears the seasoning clock.
TD Securities head of index and market structure research Peter Haynes said on CNBC’s ETF Edge that he did not agree with the decision and called it a natural extension of global benchmark practices. He pointed to Saudi Aramco’s 2019 IPO, where both FTSE and MSCI built fast-track models that added the stock within 5 to 10 days.
Strategas Securities chief ETF strategist Todd Sohn warned the split could trigger an “index war,” with performance dispersions widening between the S&P 500, the Nasdaq 100, and the Russell 1000. “If you want SpaceX, you’re not buying the S&P 500,” he said plainly.
S&P DJI Was Already Reconsidering the Rules
The S&P 500 SpaceX exclusion did not come without internal debate. S&P Dow Jones Indices launched a formal consultation on April 30, 2026, specifically on the treatment of mega-cap IPOs. The proposal on the table: cut the seasoning period from 12 months to six.
The consultation closed and S&P DJI published results on June 4, 2026, with the proposed outcome still recommending that six-month reduction. That is a meaningful softening of the current stance, but it came after the SpaceX IPO date, meaning the change would not apply retroactively to this listing. For now, the 12-month rule holds.
The S&P 500 SpaceX exclusion also sets a precedent. Sohn said on ETF Edge that the committee’s decision signals the S&P 500 will apply the same standard to OpenAI and Anthropic when those companies go public. Both are burning cash at scale and would likely face the same profitability test that SpaceX is currently failing.
Per disclosures in SpaceX’s S-1 prospectus, xAI accounted for 60 percent of the company’s 2025 capital spending. Grok, xAI’s AI assistant, reached 550 million monthly active users with 1 gigawatt of compute deployed. The S-1 paints a business whose largest single cost driver is an affiliated AI venture, a profile that makes the profitability test a real and ongoing obstacle.
A Fast-Expanding ETF Market Fills the Gap
For investors who do not want to wait for a potential S&P 500 reconstitution in 2027, options are multiplying. Tema ETFs’ Space Innovators ETF, trading under the ticker NASA, launched May 30 and already holds $2.6 billion in assets, having offered direct pre-IPO access to SpaceX.
The leveraged end of the market is also moving fast. ProShares registered the Ultra SpaceX ETF (SPCF) with the SEC in February, targeting 2x daily performance. Defiance ETFs filed with the SEC on March 4, 2026 for two new series under Tidal Trust II: a 2x long and a 2x short SpaceX product. GraniteShares is launching similar funds. The ProShares registration alone signals how quickly issuers moved to meet anticipated demand.
Sohn cautioned that leveraged products carry compounding risk and high expense ratios, and are built for traders, not retirement accounts. For long-term holders, the gap between what the S&P 500 owns and what the Nasdaq 100 owns just got wider.
The next inflection point is whether S&P DJI finalizes its proposed six-month seasoning rule and, if so, whether SpaceX can clear the profitability screen before the window opens.
