Data quality warningStale data
Data as of Oct 30, 2026, 12:17 AM UTC · policy pm-quality-4
Selected book midpoint
No · —
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Stored reference
No 87.1%
No 87.1%Market quality
34 / 100
Low quality24h Volume
$20.1
Liquidity
$691.4
Low liquidityOpen interest
$1.9K
Bid / Ask
— / —
NoSpread
—
Comments
4
Market data
Updated 11 minutes ago
Oct 27, 25, 5:52 PM UTCJan 1, 27, 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:
- 0.1 percentage points
- Fees:
- Yes
Top holders
Loading top holders
Market depth · No
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
Will Sébastien Bubeck leave OpenAI?
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PolymarketBest AI at the end of 2026?
KalshiRules
This market will resolve to "Yes" if Ari Weinstein ceases any employment or formal contractual involvement with OpenAI, for any length of time by December 31, 2026, 11:59 PM ET.
- Otherwise, this market will resolve to “No”.
- This includes any termination, suspension, or withdrawal of his contractual or partnership obligations with OpenAI.
- An official announcement of Ari’s departure from OpenAI (e.g., a statement from OpenAI or Ari indicating he will no longer be engaged with OpenAI) will qualify, regardless of when the announced departure takes effect.
- The resolution source for this market will be a consensus of credible reporting.