SettleMath

Kalshi Bitcoin 15-minute market, Oct 18, 5:30 PM CT: settled Down

This market settled Down, not close: Bitcoin’s 60-second average at the close was $71.05 below the strike.

Window5:15 PM to 5:30 PM CT, Sunday, October 18, 2026
Strike (the price it had to beat)$81,545.96
Settlement value (the official index’s 60-second average at the close)$81,474.91
ResultDown: below the strike by $71.05
Contracts traded3,245,980

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Up wins when the official index’s average over the final 60 seconds is at or above the strike. How the settlement works.