KalshiCheck availabilityKYC requiredVerified resolution dataWell calibratedSelected book midpoint
No significant difference · —
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Book received (not venue quote time): —
Stored price
No significant difference Stored bid–ask38%–44%Collected: Last trade: 38% · Trade time unknownPrices are percentages of payout, before fees; these stored observations are not executable quotes.Leader of 3 outcomes
No significant difference Stored bid–ask38%–44%Collected: Last trade: 38% · Trade time unknownPrices are percentages of payout, before fees; these stored observations are not executable quotes.Market quality
46 / 100
Low quality24h Volume
$5
Open interest
$20.6K
Medium open interestBid / Ask
— / —
No significant differenceSpread
—
Market data
Updated 7 minutes ago
Jan 31, 25, 3:00 PM UTCDec 31, 27, 3:00 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: Kalshi
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Early close:
- Yes
- Settlement timer:
- 1h (informational)
Market depth · No significant difference
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Book received (not venue quote time): —
Related Markets
Related questions for context, not a comparison of equivalent contracts.
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PolymarketRules
If US average test scores in Math for eighth graders experienced No significant difference in 2026, then the market resolves to Yes.
Settles via:Nation's Report Card
Rules for each outcome
- No significant difference
- If US average test scores in Math for eighth graders experienced No significant difference in 2026, then the market resolves to Yes.
- Significant decrease
- If US average test scores in Math for eighth graders experienced Significant decrease in 2026, then the market resolves to Yes.
- Significant increase
- If US average test scores in Math for eighth graders experienced Significant increase in 2026, then the market resolves to Yes.