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Updated 2 mo. ago

Will OpenAI’s market cap be between $750B and $1T at market close on IPO day?
1 %
chance
Market brief
- Last 50 trades: 31 buys, 19 sells; the largest was $259 (buy). Too few trades of $5K+ for a big-money read.
- Historically, 2% of Polymarket Tech markets priced 0–5% seven days before the end resolved YES (139 cases).
- Scheduled to end in 2 mo. (Jan 1, 2027).
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OpenAI IPO Closing Market Cap
7 outcomesTotal volume
$187.5K
24h vol.
$53.721
1w vol.
$198.338
1m vol.
$776.018
Liquidity
$14.4K
Bid / Ask
1¢ / 1¢
Spread 0¢
Last trade
1¢
Start date
Sep 23, 2025
End date
Jan 1, 2027
ends in 2 mo.
How reliable is this price range?
Of 139 resolved Polymarket Tech markets priced 0–5% seven days before resolution, 2.2% resolved YES. Their average price was 1.0%. In this range the price has been a reliable guide.
A historical frequency for the price range, not a probability for this market and not advice. How we measure this
What a plan adds on this market
Only what exists for this market right now.
- Full AI research reportProA cited research report on demand: probability, bull and bear case, key facts with sources.
- Your forecasts, scoredProSave your call on this market and see it scored against the result.
Order book and recent tradesDepth, spread and up to 50 recent trades
Orderbook
Spread: 0¢Snapshot from cache
Recent trades (50)
| Time | Side | Price | Size |
|---|---|---|---|
| 2 mo. ago | Sell | 99¢ | 50 |
| 2 mo. ago | Buy | 99¢ | 50 |
| 2 mo. ago | Buy | 100¢ | 61 |
| 2 mo. ago | Buy | 0¢ | 61 |
| 2 mo. ago | Buy | 99¢ | 85 |
| 2 mo. ago | Buy | 1¢ | 85 |
| 2 mo. ago | Buy | 99¢ | 174 |
| 2 mo. ago | Sell | 99¢ | 7 |
| 2 mo. ago | Buy | 1¢ | 167 |
| 2 mo. ago | Buy | 99¢ | 55 |
| 2 mo. ago | Sell | 99¢ | 10 |
| 2 mo. ago | Buy | 1¢ | 30 |
| 2 mo. ago | Buy | 1¢ | 15 |
| 2 mo. ago | Buy | 3¢ | 12 |
| 2 mo. ago | Sell | 3¢ | 12 |
| 2 mo. ago | Buy | 2¢ | 50 |
| 2 mo. ago | Sell | 3¢ | 33 |
| 2 mo. ago | Sell | 1¢ | 17 |
| 2 mo. ago | Buy | 1¢ | 25 |
| 2 mo. ago | Sell | 1¢ | 20 |
| 2 mo. ago | Sell | 1¢ | 5 |
| 2 mo. ago | Buy | 1¢ | 100 |
| 2 mo. ago | Sell | 1¢ | 25 |
| 2 mo. ago | Sell | 1¢ | 46 |
| 2 mo. ago | Sell | 1¢ | 15 |
| 2 mo. ago | Sell | 1¢ | 14 |
| 2 mo. ago | Sell | 99¢ | 6 |
| 2 mo. ago | Sell | 1¢ | 6 |
| 2 mo. ago | Buy | 100¢ | 259 |
| 2 mo. ago | Buy | 0¢ | 259 |
| 2 mo. ago | Buy | 100¢ | 85 |
| 2 mo. ago | Buy | 0¢ | 85 |
| 2 mo. ago | Buy | 100¢ | 100 |
| 2 mo. ago | Buy | 0¢ | 100 |
| 2 mo. ago | Buy | 0¢ | 314 |
| 2 mo. ago | Sell | 1¢ | 28 |
| 2 mo. ago | Buy | 100¢ | 48 |
| 2 mo. ago | Sell | 0¢ | 20 |
| 2 mo. ago | Sell | 0¢ | 218 |
| 2 mo. ago | Sell | 0¢ | 2,327 |
| 2 mo. ago | Buy | 0¢ | 544 |
| 2 mo. ago | Buy | 0¢ | 1,783 |
| 2 mo. ago | Sell | 0¢ | 333 |
| 2 mo. ago | Buy | 0¢ | 333 |
| 2 mo. ago | Buy | 100¢ | 200 |
| 2 mo. ago | Buy | 0¢ | 106 |
| 2 mo. ago | Buy | 0¢ | 94 |
| 2 mo. ago | Buy | 100¢ | 60 |
| 2 mo. ago | Buy | 0¢ | 60 |
| 2 mo. ago | Buy | 100¢ | 100 |
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