PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedData quality warningStale data
Data as of Oct 27, 2026, 10:53 AM UTC · policy pm-quality-4
Selected book midpoint
$OAI · —
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Stored reference
$OAI 43.4%Leader of 8 outcomes
$OAI 43.4%Market quality
27 / 100
Low quality24h Volume
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Liquidity
$12.9K
Medium liquidityOpen interest
$4.4K
Bid / Ask
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$OAISpread
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Comments
3
Market data
Updated 2 hours ago
StaleMay 20, 26, 9:58 PM UTCJan 1, 28, 4:59 AM UTC
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Minimum order (shares):
- 5
- Tick size:
- 1 percentage points
- Fees:
- Yes
Top holders
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Market depth · $OAI
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
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Manifold MarketsRules
This market will resolve according to the public ticker symbol used by OpenAI in an IPO (Initial Public Offering) by December 31, 2027, 11:59 PM ET.
- An official announcement from OpenAI that it will IPO under a specific ticker symbol will be sufficient to resolve this market.
- If a ticker used by OpenAI in a qualifying IPO is a variant of a ticker symbol listed in this market group with additional letters to denote a specific class of shares, it will be considered to be that ticker (e.g. if OpenAI uses a ticker symbol of $OPAI.A or $OPAIA, this market will resolve to $OPAI).
- If OpenAI announces an IPO with multiple tickers that are not considered the same ticker under the previous rule (i.e. $OPAI.A and $OPAI.B would be considered the same ticker), this market will remain open until OpenAI's first day of public trading and will resolve according to the ticker symbolizing the security class with the greatest market capitalization.
- Market capitalization is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day.
- If this also results in a tie, this market will resolve according to the ticker symbol that comes first in alphabetical order.