On Polymarket, Anthropic has overtaken SpaceX as the favored contender for the largest IPO by market cap in 2026. This shift follows Anthropic’s announcement of a $30 trillion total addressable market and a significant $45 billion compute deal. SpaceX set the current record by going public in June 2026 with a valuation of approximately $1.77 trillion. Anthropic’s recent private funding round valued the company at $965 billion, with discussions underway regarding a potential IPO valuation around $2 trillion.
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