Investors’ Strategies Following the Exclusion of SpaceX, Anthropic, and OpenAI from the 2026 S&P 500

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S&P Dow Jones Indices Reverses Fast-Track Decision for S&P 500 Inclusion

On June 4, S&P Dow Jones Indices announced it will not fast-track megacap companies into the S&P 500, requiring all firms to undergo a minimum 12-month seasoning period in the public markets before eligibility. This decision affects high-profile IPOs including SpaceX, which is raising $75 billion at a valuation of $1.77 trillion, Anthropic at $965 billion, and OpenAI at $852 billion.

Under current criteria, none of these tech giants can join the S&P 500 until at least June 2027, despite their massive valuations that collectively exceed $3.59 trillion. However, they may still qualify for fast-track entry into the Nasdaq-100, offering alternative exposure through Nasdaq-tracking ETFs.

Historically, the largest IPO was Saudi Arabian Oil’s $25.6 billion raise in 2019. The U.S. market is now on the brink of unprecedented IPO activity, as SpaceX, Anthropic, and OpenAI could redefine the index landscape, challenging existing investment methodologies.

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