Knoww
OpenAI IPO closing market cap above ___ ?
The Field
5 of 7§ Market context
About this market
Traders currently see $800B as the leading outcome, at a 74% probability across 7 listed outcomes. The market has traded approximately $1.57M in volume as of the latest update. It is scheduled to resolve by January 1, 2028.
- Status
- Live trading
- Leading outcome
- $800B (74%)
- Volume
- $1.57M
- Liquidity
- $13.89K
- Resolution date
- January 1, 2028
- Outcomes
- 7
- Last updated
- October 24, 2026
Rules and resolution
This market will resolve to “Yes” if the official closing price for OpenAI's market capitalization on its first trading day is above the listed value. Otherwise, it will resolve to “No”. If no IPO occurs by December 31, 2027, 11:59 PM ET, this market will resolve to “No”. Market capitalization is defined as the total number of outstanding shares multiplied by the closing share price on the first trading day. Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used. In the event of an interruption in the course of the normal trading session on OpenAI's first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading.
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.
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Prediction-market prices can move quickly and past probabilities do not guarantee outcomes. Nothing on this page is financial advice.