PolymarketCheck availabilityNo KYC2% feeVerified resolution dataWell calibratedCurrent implied probability
<$30B 27.3%+3.1ptLeader of 9 outcomesVig-adjusted: raw venue quotes summed above 100% and were normalized.
Market quality
30 / 100
Low quality24h Volume
—
Liquidity
$12.4K
Medium liquiditySpread
61.0 pt
Wide spreadComments
0
7d Change
-2.0 pts
Market data
Updated 4 minutes ago
May 21, 26, 5:18 PM UTCDec 31, 27, 12:00 AM UTC
Trends
Related Markets
Related questions for context, not a comparison of equivalent contracts.
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KalshiAnthropic IPO by which date?
PolymarketWhen will Anthropic officially announce an IPO?
KalshiWhat will OpenAI's IPO valuation be?
PolymarketRules
This market will resolve according to the total gross proceeds raised by OpenAI in its initial public offering (IPO) at the time of pricing.
- The amount raised is defined as the aggregate dollar value of shares sold at the final offering price at the time of IPO pricing, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission.
- Shares sold pursuant to any overallotment option (greenshoe) will not be considered.
- Secondary sales of existing shares by current shareholders will be included only to the extent that they are part of the IPO offering at pricing and reflected in the total gross proceeds.
- Private secondary transactions conducted outside of the IPO will not be considered.
- If the total proceeds fall exactly on a boundary between two ranges, this market will resolve to the higher range.
Open markets
RegulationPOLYMARKETClarity Act (H.R.3633) signed into law in 2026?
- No+2.0pt86%
- Yes-2.0pt14%
- Total Vol
- $14.5M
- 24h Vol
- $289.9K
KALSHIWill the Clarity Act become law?
- Before Oct 1, 2027-11.0pt44%
- Before Jan 1, 2028-13.0pt38%
- Before Jul 1, 2027-15.0pt32%
+7 more outcomes
POLYMARKETAnthropic IPO by which date?
- December 31,+4.0pt90%
- December 15,86%
- November 30,-1.0pt84%
+7 more outcomes
- Total Vol
KALSHIWhen will Anthropic officially announce an IPO?
- Before Apr 1, 2027+5.0pt97%
- Before Jan 1, 2027+5.0pt96%
- Before Mar 1, 2027-1.0pt94%
+9 more outcomes
KALSHIWhen will Tesla and SpaceX merge?
- Before 2028-2.0pt63%
- Before May 1, 2027+5.0pt54%
- Before Apr 1, 2027-4.0pt47%
+8 more outcomes
POLYMARKETWhat will OpenAI's IPO valuation be?
- $1.25T–$1.5T20.4%
- $1.75T–$2.0T19.4%
- $1.5T–$1.75T18.4%
+5 more outcomes
- Total Vol
- $122.2K
- How many states will adopt data center moratoriums in 2026?
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- When will the Senate vote on the Clarity Act?
Frequently asked questions
- What are the current odds for How much will OpenAI raise in its IPO??
- Polymarket prices <$30B at 27% as of September 9, 2026.
- When does How much will OpenAI raise in its IPO? resolve?
- How much will OpenAI raise in its IPO? is scheduled to resolve on December 31, 2027.
- How is How much will OpenAI raise in its IPO? settled?
- Polymarket settles this market as follows: This market will resolve according to the total gross proceeds raised by OpenAI in its initial public offering (IPO) at the time of pricing.