Traders on Polymarket are betting heavily against OpenAI hitting a $1.25 trillion to $1.5 trillion valuation at the close of its first trading day, with the market pricing in a 96% probability that the AI giant will land below that range. The contract, which has seen $515,000 in volume, reflects a consensus that the company's public debut will be more modest than some bullish projections suggest.
No other prediction platforms—such as Kalshi or Manifold—currently offer contracts on this specific outcome, making Polymarket the sole source of probabilistic insight. The lack of cross-platform data limits the ability to gauge broader market sentiment, but the high volume on Polymarket indicates significant trader conviction. No specific news headlines were identified as driving this probability, suggesting the market's view is based on general expectations around OpenAI's growth trajectory and IPO pricing dynamics.
Analysts note that a 4% probability implies a roughly 1-in-25 chance, a steep hurdle that reflects skepticism about OpenAI's ability to command a valuation exceeding $1.25 trillion immediately upon listing. The company's private valuation has been a subject of intense debate, with some estimates placing it lower, but the IPO market's reception remains uncertain.