TOTAL VOLUME:
$154.4b
24H VOL:
$290,393,159
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,944,100,805
420,493
Markets across
40,511
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 29, 4:00 PM EST
Kalshi
This set of markets tracks potential future performance of a major stock market index on a specific date, allowing participants to speculate or hedge based on their expectations of economic and market conditions months in advance.
All markets share a common resolution framework centered on the S&P 500 index's closing value at 4pm EDT on October 29, 2026. Each market has a distinct threshold: if the index closes above its specific numerical barrier (e.g., 7,550, 7,555, up to 7,845), that market resolves to 'Yes'; otherwise, it resolves to 'No.' All markets close on October 29, 2026, and expiration occurs either when the index value is officially released or one week after that date, whichever comes first. The Exchange has applied specific modifications to the source agency and underlying assets for index-related markets as detailed in the Kalshi Rulebook.