Will OpenAI’s market cap be between $500B and $750B at market close on IPO day?
Yes is trading at 0.2% on Polymarket. $167K traded over the market’s life. It was scheduled to resolve on 30 June 2026.
By volume it is number 121 of the 122 open finance markets on the board.
Its scheduled resolution date passed 38 days ago. Polymarket still lists it as open, so the price above is current, but the question may be waiting on settlement.
Trade this on Polymarket ↗Current odds
| Yes | 0.2% | |
|---|---|---|
| No | 99.8% |
Prices are the market’s implied probability: a contract at 62% costs 62 cents and pays $1 if it resolves true.
Price history
Hourly samples for Yes. The live board draws every outcome and lets you switch the window.
Market detail
- Lifetime volume
- $167K
- 24h volume
- —
- 24h move
- —
- Liquidity
- $8K
- Open interest
- —
- Opened
- 23 September 2025
- Resolves
- 30 June 2026
- Venue
- Polymarket · on-chain, Polygon
Where this price comes from
Polymarket is an on-chain venue settling in USDC on Polygon. The number above is the last traded price on this contract, pulled from the venue’s public API and refreshed every 15 minutes. This site takes no position and sets no price of its own.
To weigh it against the same question elsewhere, open the live board: it puts the busiest open Polymarket and Kalshi market side by side, sized by volume and colored by probability.
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