Markets/Finance/What will OpenAI's IPO valuation be?
What will OpenAI's IPO valuation be?

What will OpenAI's IPO valuation be?

$380.05KVolJan 18 mkts14 months leftNeg Risk

The Field

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§ Market context

About this market

Traders currently see <$1T as the leading outcome, at a 22% probability across 8 listed outcomes. The market has traded approximately $380.05K in volume as of the latest update. It is scheduled to resolve by January 1, 2028.

Status
Live trading
Leading outcome
<$1T (22%)
Volume
$380.05K
Liquidity
$69.20K
Resolution date
January 1, 2028
Outcomes
8
Last updated
October 16, 2026

Rules and resolution

This market will resolve according to the implied equity valuation of OpenAI at its initial public offering (IPO) price. The IPO valuation is defined as the final IPO price per share multiplied by the total number of shares outstanding on a fully diluted basis, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission. The IPO price will be the final offering price to the public as stated in the final prospectus. Trading prices after listing, including the opening trade, intraday prices, or closing price on the first day of trading, will not be considered. Indicated or preliminary price ranges, including any ranges disclosed in earlier filings or amendments, will not be considered. If the calculated valuation falls exactly on a boundary between two ranges, this market will resolve to the higher range. If OpenAI does not complete an IPO by December 31, 2027, 11:59 PM ET, this market will resolve to the lowest bracket. The primary resolution source will be the final prospectus filed with the SEC; however, a consensus of credible reporting may also be used.

Data source and freshness

Odds, volume, and liquidity come from live Polymarket order books. Prices update continuously while trading is open; the figures above reflect the most recent refresh. Probabilities are market prices — what traders collectively pay for a $1 payout if the outcome occurs — not editorial forecasts.

Prediction-market prices can move quickly and past probabilities do not guarantee outcomes. Nothing on this page is financial advice.