OpenAI IPO: 6% market-implied probability of $750B-$1T valuation, with $709 24h volume and resolution June 30. Trade live on Polymarket via Polymarket Trade.
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OpenAI's IPO is one of the most anticipated technology events in recent years, with market expectations suggesting valuations well outside the $750B-$1T range. The 6% probability on this specific valuation band reflects deep uncertainty about where OpenAI will price itself on its first day of public trading. The prediction market is heavily betting that the company's opening market cap will fall either significantly below $750B or well above $1T. This divergence suggests traders see a binary outcome: either OpenAI commands a mega-cap valuation above $1T on the strength of its AI leadership, or it prices more conservatively below $750B. Most traders pricing into this market believe the company will achieve a substantially higher valuation, reflecting investor enthusiasm for the generative AI leader and strong institutional demand. OpenAI's dominant market position, significant revenue base, and strong investor backing have created expectations of a strong IPO. The current market pricing suggests traders view a $750B-$1T valuation as too narrow a band given potential volatility on day one. This market resolves on June 30, 2026, based on the official closing market cap during OpenAI's first trading day, making the opening price action critical to the outcome.
OpenAI's path to IPO has been closely watched since its inception, with the company's valuation evolving dramatically as its capabilities expanded. In recent private funding rounds, OpenAI was valued at over $80B, but the generative AI boom has created uncertainty about where public markets will value the company. The $750B-$1T valuation band offered in this prediction market represents a cautious middle ground, but traders are heavily betting it will be bypassed entirely. Several factors suggest the IPO could price above $1T: OpenAI's market dominance in large language models, reported annual revenue potentially approaching $10B+, strong institutional investor demand for AI exposure, and comparison to other mega-cap tech IPOs that have often exceeded expectations. Companies like Alibaba, Saudi Aramco, and Facebook all debuted at valuations that proved modest relative to subsequent trading, suggesting anchor points above the conservative end. Conversely, factors that could push valuations below $750B are less obvious but possible: regulatory uncertainty around AI, competition from open-source models and other startups, execution risk on revenue projections, and broader macroeconomic conditions that could cool IPO enthusiasm. Historical precedent from the AI boom is limited, but comparable software and cloud IPOs from the 2020s typically opened with elevated multiples that often contracted within months. The fact that only 6% of prediction market traders believe OpenAI will land in this exact $750B-$1T band suggests exceptional confidence that the IPO will be marked by either bullish surprise (above $1T) or cautious re-pricing (below $750B). IPO day volatility and opening-print mechanics could play a significant role—some markets gap higher on the first day before consolidating, while others decline if early supply overwhelms initial demand. The market resolution depends entirely on the official closing price at the end of OpenAI's first trading day, which could differ materially from the opening print. This concentration of odds outside the target band reflects trader consensus that $250B ranges are too narrow to capture the potential outcomes for a company of OpenAI's profile, scale, and market position in AI.
Resolves on June 30, 2026, based on OpenAI's official closing market cap on its first trading day. Market cap is determined by share price at close multiplied by total shares outstanding.
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