Will OpenAI's valuation hit (LOW) $700B by December 31?

As of August 21, 2026, Polymarket prices “Will OpenAI's valuation hit (LOW) $700B by December 31?” at 13% YES with $59K traded. No tracked wallet holds a position on this market, so there is no verdict.

Prediction markets put the probability at 18%: Will OpenAI's valuation hit (LOW) $700B by December 31. Currently, markets see this as unlikely (18% YES).

What’s Happening

As of mid-June 2026, traders have priced an 18% probability that OpenAI's valuation will hit $700B by December 31, with the contract trading at a steep discount to the 82% NO side. This specific lower-band contract has drawn attention because it sits well below the company's last confirmed private round, which reportedly valued the firm near $500B in early 2026. The wide gap between the current mark and the $700B threshold reflects a market consensus that a single, discrete valuation event—such as a new funding round or secondary share sale—must occur within the next six months to trigger settlement, a timeline that appears increasingly narrow given the absence of formal tender offers or board-approved capital raises in public filings. [Cryptoslate, Jun 17]

The significance of the OpenAI's valuation hit (LOW) $700B by December 31 contract lies in its role as a hedging instrument against the more heavily traded upper-band outcomes, such as $800B or $1T. Analysts note that lower-band pricing often clusters between 10.5% and 12.5% in multi-outcome markets, a pattern that can reflect settlement interpretation risk or limited liquidity rather than a genuine fundamental assessment. In this case, the 18% YES price is notably higher than comparable Anthropic contracts at the same $700B strike, which trade near 11%, suggesting that market participants assign OpenAI a marginally higher chance of a near-term valuation catalyst—likely tied to a rumored strategic investment from a sovereign wealth fund or a major cloud provider. [Cryptoslate, Jun 17]

Looking ahead, the key catalyst for this contract is the expected release of OpenAI's Q3 2026 revenue disclosures and any formal announcement of a new equity round before November 30, which would be the last practical window for a valuation event to be recorded by year-end. The counter-signal comes from a lagging source: Anthropic's own valuation gauge is approaching the $1 trillion mark, illustrating that the broader AI sector is experiencing upward repricing pressure that could indirectly lift OpenAI's perceived worth. However, without a confirmed transaction, the $700B threshold remains a stretch target, and the 82% NO probability reflects the market's view that the company will likely close the year at a valuation between $550B and $650B, based on current revenue run-rate multiples. [Cryptoslate, Jun 17]

Traded on Polymarket — $59K Volume