Selected book midpoint
OpenAI · —
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Stored reference
OpenAI 49.5%Leader of 12 outcomesVig-adjusted: raw venue quotes summed above 100% and were normalized.
OpenAI 49.5%Market quality
74 / 100
Medium quality24h Volume
$14.5K
Liquidity
$9.7K
Medium liquidityOpen interest
$3.2K
Bid / Ask
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OpenAISpread
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Comments
0
Market data
Updated 8 minutes ago
Oct 19, 26, 6:01 AM UTCOct 27, 26, 4:00 PM 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 · OpenAI
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Related questions for context, not a comparison of equivalent contracts.
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KalshiRules
This market will resolve to the AI lab with the third highest market share on OpenRouter for the week of October 19 to October 25, 2026.
- A lab's market share is the percentage displayed for that lab in the Market Share chart, set to Percentage, for the week of October 19 to October 25, 2026.
- The "stealth" and "others" groupings are not labs; if either occupies the relevant rank, it will be skipped and the next ranked lab will be used.
- This market will resolve according to the figures displayed for the week of October 19 to October 25, 2026 once the figures for the week of October 26, 2026 are first displayed.
- If the figures for the week of October 26, 2026 have not been displayed by 11:59 PM ET on October 30, 2026, this market will resolve according to the figures displayed for the week of October 19 to October 25, 2026 at that time.
- If no data is available for the week of October 19 to October 25, 2026 at that time, this market will resolve to "Other".