TOTAL VOLUME:

$41.6b

24H VOL:

$113,284,831

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2,858,735,640

OPEN INTEREST:

$1,620,345,032

79,029

Markets across

1,359

events

MATCHED EVENTS:

138

PLATFORM COVERAGE:

4

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45%

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OpenAI IPO closing market cap above ___ ?
polymarket

OpenAI IPO closing market cap above ___ ?

Jan 30, 2026, 7:27 PM EST - Dec 31, 2027, 11:59 PM EST
Total volume:
$1,568,569
Volume 24h:
$446
44%
Liquidity:
$13,180
5%
Open interest:
$24,536N/A

$800B

 - Polymarket

$800B - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolves Dec 31, 2027

OpenAI IPO closing market cap above $800B?

73%chance
Amount

$

Trade on
polymarket

Trade on Polymarket

At 73.6¢ buys you 136 shares | Odds: 73% Total Payout: $136 | Net Profit: $36 Multiplier: 1.36x | ROI: 36% | APY: 30% 430 days to resolution
You will be redirected to the platform to complete this trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

$800B

Trade
73%
1%
Yes 73.6¢No 27.9¢
1.5¢
$4,739
$128,860
0.04%
N/A
N/A
1y 2mo
active
polymarket

$1T

Trade
68%
7%
Yes 70¢No 34¢
4¢
$3,473
$1,058,223
0.01%
N/A
N/A
1y 2mo
active
polymarket

$1.2T

Trade
50%
7%
Yes 71¢No 71¢
42¢
$2,089
$250,702
0%
N/A
N/A
1y 2mo
active
polymarket

$1.4T

Trade
48%
2%
Yes 57¢No 61¢
18¢
$892
$74,479
0.23%
N/A
N/A
1y 2mo
active
polymarket

$1.6T

Trade
34%
3%
Yes 42¢No 70¢
12¢
$1,818
$56,304
0.27%
N/A
N/A
1y 2mo
active
polymarket

$1.8T

Trade
70%
29%
Yes 70¢No 97¢
67¢
$93
N/A
N/A
N/A
N/A
1y 2mo
active
polymarket

$2T

Trade
74%
38%
Yes 74¢No 97¢
71¢
$76
N/A
N/A
N/A
N/A
1y 2mo
active
Total markets: 7

Description

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.

Polymarket

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.