Polymarket odds of "Anthropic becoming largest IPO of 2026" rise to 45%, up 37% in a week

Monitoring by the PPP Prediction Market Tool shows that Polymarket odds of "Anthropic becoming the largest IPO of 2026" stand at 45%, up 37% over the week, just slightly below SpaceX's 55%.

As recently as last week, SpaceX held a commanding lead in the "largest IPO of 2026" race. But this week, Anthropic has rapidly narrowed the gap. According to market reports, Anthropic is actively advancing its listing plans, with an IPO potentially coming as early as October. Some Anthropic investors expect the company to go public at a valuation of $2 trillion or higher — a staggering figure that would surpass SpaceX.

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