KalshiCheck availabilityKYC requiredVerified resolution dataWell calibratedCurrent implied probability
At least 4 weeks 32%Market line of 4 lines
At least 4 weeks 32%Market quality
69 / 100
Medium quality24h Volume
$17.1K
Open interest
$14.1K
Medium open interestSpread
1.0 pt
Tight spreadMarket data
Updated 18 minutes ago
Sep 28, 26, 7:41 PM UTCDec 26, 26, 4:59 AM UTC
Trends
Venue terms
Source: Kalshi
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Early close:
- Yes
- Settlement timer:
- 30m (informational)
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Related questions for context, not a comparison of equivalent contracts.
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KalshiRules
If Patient Zero by Taylor Swift spends at least 4 week(s) at the #1 position on the Billboard Hot 100 in 2026, then the market resolves to Yes.
Settles via:Billboard
Rules for each outcome
- At least 1 weeks
- If Patient Zero by Taylor Swift spends at least 1 week(s) at the #1 position on the Billboard Hot 100 in 2026, then the market resolves to Yes.
- At least 2 weeks
- If Patient Zero by Taylor Swift spends at least 2 week(s) at the #1 position on the Billboard Hot 100 in 2026, then the market resolves to Yes.
- At least 3 weeks
- If Patient Zero by Taylor Swift spends at least 3 week(s) at the #1 position on the Billboard Hot 100 in 2026, then the market resolves to Yes.
- At least 4 weeks
- If Patient Zero by Taylor Swift spends at least 4 week(s) at the #1 position on the Billboard Hot 100 in 2026, then the market resolves to Yes.