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: Sep 28, 1:00 PM EST
Kalshi
This set of markets tracks whether the S&P 500 index will reach or exceed various threshold values at a specific future date and time. Each market corresponds to a different numerical threshold, allowing participants to speculate on the precise level of the index at that moment.
All markets in this event resolve based on the S&P 500 index value at 1pm EDT on September 28, 2026. Each individual market has a unique threshold value; if the index closes at or above that threshold during the specified time, the market resolves to 'Yes,' otherwise to 'No.' All markets close on September 28, 2026, and expire either upon the first official release of the index data or one week after the close date, whichever occurs first. The Exchange has applied specific modifications to the source agency and underlying assets for index-related markets as detailed in the Kalshi Rulebook.