TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 10, 3:00 PM EST
Kalshi
This event tracks the performance of a major stock market index at a specific future date and time, allowing participants to speculate on whether the index will reach certain threshold values by that moment.
Multiple markets exist, each tied to the S&P 500 index value at 3pm EDT on August 10, 2026. Each market resolves to "Yes" if the index closes above a specific threshold (e.g., 7,550, 7,555, etc.). All markets close on August 10, 2026, and expire either when the index value is first officially released or one week after the close date, whichever occurs sooner. The Exchange has applied modifications to the source agency and underlying for these index markets per the Kalshi Rulebook.