SpaceX, Anthropic, and OpenAI Won't Be Added to the S&P 500 in 2026. Here's What Investors Can Do About It.
S&P Dow Jones Indices kept megacap IPOs out of the S&P 500, delaying exposure for index investors.
Intelligence analysis by GPT-5.4 Mini
The article says S&P 500 rules still require a 12-month seasoning period, so SpaceX, Anthropic, and OpenAI will not be fast-tracked into the index in 2026. It argues that investors who want early exposure may need ETFs tied to benchmarks like the Nasdaq-100 or broader market indexes instead.
These companies are so huge that they are like giant new buildings entering a neighborhood. But the S&P 500 has a rule that makes them wait before moving in, so investors who want them sooner may need different funds that shop in a different store.
Analysis
What changed
S&P Dow Jones Indices reversed an earlier idea to shorten the IPO seasoning period for megacap companies. The article says the June 4 decision means companies still need at least 12 months in the public markets before they can enter the S&P 500, regardless of how large their valuations are.
Why these IPOs are unusual
The piece frames SpaceX, Anthropic, and OpenAI as IPOs on a scale the U.S. market has not seen before. It cites valuations of $1.77 trillion for SpaceX, $965 billion for Anthropic, and $852 billion for OpenAI, and says that combined value would be $3.59 trillion. The article argues that kind of size makes these offerings hard for index providers and ETFs to ignore.
What investors can do
For investors who want early exposure, the article points to benchmarks other than the S&P 500. It says Nasdaq-100 funds such as the Invesco QQQ Trust could be a route if Nasdaq keeps its fast-track approach for IPOs that meet its criteria. It also notes that broader funds like Vanguard Total Stock Market ETF and Vanguard Growth ETF are more likely to buy SpaceX shortly after its IPO because they are not tied specifically to the S&P 500.
For investors who do not want exposure, the article suggests ETFs with selection rules that would not include these companies quickly, such as the Vanguard Value ETF or Vanguard Dividend Appreciation ETF.
Bottom line
The article's core point is that megacap private companies are now large enough to influence how index providers think about eligibility, weighting, and timing. Even without immediate S&P 500 inclusion, they may still reshape ETF exposure through other benchmarks.
Key points
- S&P Dow Jones Indices rejected faster S&P 500 entry for megacap IPOs.
- The index still requires a minimum 12-month seasoning period before inclusion.
- SpaceX, Anthropic, and OpenAI are too large to treat like ordinary IPOs, according to the article.
- Nasdaq-100 funds may offer faster exposure if Nasdaq keeps its proposed methodology.
- S&P 500 ETFs like VOO would not buy these stocks until they are officially added.
If Nasdaq keeps its faster IPO approach, funds like QQQ could give investors earlier exposure to these companies. Broader ETFs such as VTI or VUG could also start buying SpaceX soon after its IPO, giving investors a way to own them without waiting for S&P 500 inclusion.
S&P 500 investors will get no exposure to these companies until at least June 2027 under the article's reading of the rules. If an investor only owns S&P 500 funds, the biggest downside is missing the early ownership window and any index impact from these megacap IPOs.
