TOTAL VOLUME:
$134.2b
24H VOL:
$129,159,707
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,442,132,418
404,744
Markets across
30,489
events
MATCHED EVENTS:
2,691
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 24, 2:00 PM EST
Kalshi
This set of markets focuses on predicting the performance of a major stock market index at a specific future date and time. Each market represents a different threshold value that the index must exceed to settle as 'Yes'. The outcome depends entirely on the index's level at the exact closing time specified.
All markets share identical secondary rules and resolve based on the S&P 500 index value at 2pm EDT on August 24, 2026. Each market has a unique primary threshold, specified as a numerical value (e.g., 7474.9999 or above). If the index closes above the respective threshold, that market resolves to 'Yes'; otherwise, it resolves to 'No'. All markets close on August 24, 2026, and expiration occurs at the sooner of the first official data release or one week after the closing date. The Exchange has applied specific modifications to the source agency and underlying assets for all index-related markets as per the Kalshi Rulebook.