TOTAL VOLUME:

$41.6b

24H VOL:

$113,284,831

24H TRANSACTIONS:

2,858,735,640

OPEN INTEREST:

$1,620,345,032

79,029

Markets across

1,359

events

MATCHED EVENTS:

138

PLATFORM COVERAGE:

4

Polymarket:

45%

VS.

Kalshi:

55%

BETA
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Tour
All
OpenAI IPO by...?
kalshi
polymarket

OpenAI IPO by...?

Total volume:
$4,490,160
Volume 24h:
$292,050
12,145%
Liquidity:
$79,527
62%
Open interest:
$609,641
0.01%

Before Jun 1, 2027

 - Kalshi

Before Jun 1, 2027 - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolves Jun 30, 2027

When will OpenAI IPO?

57%chance
Amount

$

Trade on
kalshi

Trade on Kalshi

Join Kalshi and score $25 for your first trade.At 57¢ buys you 175 shares | Odds: 57% Total Payout: $175 | Net Profit: $75 Multiplier: 1.75x | ROI: 75% | APY: 157% 217 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
kalshi

Before Jun 1, 2027

Trade
57%
Yes 57¢No 46¢
3¢
N/A
$33,887
0.31%
N/A
$12,183
7mo 1w
active
kalshi

Before May 1, 2027

42%
Yes 45¢No 59¢
4¢
N/A
$23,669
0%
N/A
$7,698
7mo 1w
active
polymarket

June 30, 2027

41%
Yes 41¢No 60¢
1¢
$27,432
$10,491
0.1%
N/A
N/A
8mo 6d
active
kalshi

Before Apr 1, 2027

27%
Yes 27¢No 74¢
1¢
N/A
$38,715
0.29%
N/A
$10,183
7mo 1w
active
polymarket

March 31, 2027

21%
Yes 21¢No 80¢
1¢
$16,784
$6,652
0%
N/A
N/A
5mo 5d
active
PredictionHero
PH Consensus
26%
Yes 24¢No 77¢
Avg: 1¢Max: 1¢
kalshi

Before Mar 1, 2027

21%
Yes 22¢No 79¢
1¢
N/A
$30,737
0.82%
N/A
$10,130
7mo 1w
active
kalshi

Before Feb 1, 2027

7%
Yes 10¢No 93¢
3¢
N/A
$46,927
0%
N/A
$17,886
7mo 1w
active
kalshi

Before Jan 1, 2027

7%
Yes 6¢No 97¢
3¢
N/A
$152,375
0.01%
N/A
$34,236
7mo 1w
active
polymarket

December 31, 2026

3%
Yes 3.5¢No 96.6¢
0.1¢
$35,311
$1,089,976
0.08%
N/A
N/A
2mo 5d
active
PredictionHero
PH Consensus
3.9%
Yes 4.8¢No 96.8¢
Avg: 1.6¢Max: 3¢
kalshi

Before Dec 1, 2026

3%
Yes 3¢No 100¢
3¢
N/A
$101,790
0%
N/A
$20,888
7mo 1w
active
kalshi

Before Nov 1, 2026

1%
Yes 1¢No 100¢
1¢
N/A
$93,287
0%
N/A
$26,136
7mo 1w
active
kalshi

Before Jun 1, 2026

1%
Yes 100¢No 100¢
—
N/A
$102,521
N/A
N/A
$93,558
7mo 1w
No
polymarket

June 30, 2026

0%
Yes 0¢No 100¢
—
N/A
$957,465
N/A
N/A
N/A
N/A
No
polymarket

December 31, 2025

0%
Yes 0¢No 100¢
—
N/A
$495,527
N/A
N/A
N/A
N/A
No
kalshi

Before Sep 1, 2026

0%
Yes 0¢No 100¢
—
N/A
$319,376
N/A
N/A
$150,036
7mo 1w
No
polymarket

August 31, 2026

0%
Yes 0¢No 100¢
—
N/A
$207,401
N/A
N/A
N/A
N/A
No
polymarket

July 31, 2026

0%
Yes 0¢No 100¢
—
N/A
$184,102
N/A
N/A
N/A
N/A
No
kalshi

Before Aug 1, 2026

0%
Yes 0¢No 100¢
—
N/A
$177,583
N/A
N/A
$97,401
7mo 1w
No
polymarket

September 30, 2026

0%
Yes 0¢No 100¢
—
N/A
$150,890
N/A
N/A
N/A
Settled
No
kalshi

Before Oct 1, 2026

0%
Yes 0¢No 100¢
—
N/A
$137,185
N/A
N/A
$31,695
7mo 1w
No
kalshi

Before Jul 1, 2026

0%
Yes 0¢No 100¢
—
N/A
$129,603
N/A
N/A
$97,612
7mo 1w
No
Total markets: 21

Description

This group forecasts whether OpenAI will conduct an Initial Public Offering (IPO) by a specific date. An IPO is defined as the first sale of stock to the public on a recognized stock exchange. Acquisition of OpenAI by a publicly traded company would negate the IPO outcome.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: The platforms differ in the granularity of IPO deadlines, creating multiple potential resolution points and requiring traders to monitor several markets.Hero tip: Focus on the Polymarket markets with the nearest deadlines for quicker potential resolution. Be mindful that a 'Yes' resolution on one Kalshi market doesn't guarantee a 'Yes' on all others.

Critical divergence points:

  • Polymarket: Resolves 'Yes' if OpenAI completes an IPO by the listed date (e.g., August 31, 2026) as confirmed by official company announcements and credible news sources. Otherwise, 'No'. "If OpenAI is acquired by another company that is already public, this market will immediately resolve to "No."
  • Kalshi: Resolves 'Yes' if OpenAI confirms an IPO before a series of dates spanning from June 1, 2026 to June 1, 2027. Each date represents a separate market.
Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

This market will resolve to "Yes" if OpenAI completes an Initial Public Offering (IPO) by the listed date ET, as confirmed by official company announcements and credible news sources. Otherwise, this market will resolve to "No". The IPO refers to the first sale of stock by the listed company to the public on any recognized stock exchange. If OpenAI is acquired by another company that is already public, this market will immediately resolve to "No." The resolution source for this market is a consensus of credible reporting.

Kalshi

OpenAI's IPO is confirmed upon the earliest occurrence of any of three events: SEC declaration that the company's Form S-1 is effective, the IPO being priced, or a securities exchange assigning a ticker symbol to the company. Once any of these milestones occurs, the market resolves to Yes immediately, regardless of when actual trading begins. Each market outcome corresponds to a specific deadline date; if confirmation occurs before that date, the outcome resolves Yes. The resolution is based on official regulatory filings, pricing announcements, or exchange assignments made through verifiable channels.