OpenAI’s most recent private valuation stands at $852 billion following its March 2026 $122 billion round, with secondary-market prints near $860 billion as of September 2026. Trader sentiment for hitting elevated thresholds by year-end is shaped by early September talks of a potential pre-IPO financing at $1.2–1.5 trillion, driven by annualized revenue exceeding $40 billion—roughly double year-end 2025 levels—alongside traction in Codex and new models. The company has signaled a 2027 IPO rather than 2026, with any new round or secondary tender serving as the key catalyst that could reset benchmarks before December 31. Market-implied odds reflect uncertainty over whether these private prints materialize in time or remain anchored near current levels amid heavy infrastructure spending.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedOpenAI valuation market prices peak near $1 trillion ahead of expected IPO
↑$1.0T surges to 87%37%
Market prices for OpenAI's valuation options peaked near 87% for the $1 trillion threshold, reflecting strong investor belief in reaching or exceeding this valuation by the end of September 2026, despite IPO delays.





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