TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 31, 10:00 AM EST
Kalshi
This set of markets tracks 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 for the outcome to be considered successful. These markets allow participants to speculate on or hedge against potential future movements in the index's value.
All markets in this event resolve based on the S&P 500 index value at 10am EDT on August 31, 2026. Each individual market has a specific threshold value (e.g., 7574.9999, 7579.9999, etc.), and resolves to "Yes" if the index value at the specified time exceeds its respective threshold. Markets close on August 31, 2026, and expiration occurs at the sooner of the first official data release or one week after the closing date. All markets adhere to modified source agency and underlying rules for indices as specified in the Kalshi Rulebook.