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 15, 4:00 PM EST
Kalshi
This set of markets focuses on predicting the performance of a major stock market index on a specific future date. Each market represents a different threshold value that the index must exceed to settle as 'Yes'. These markets allow participants to speculate on the future direction of market trends based on precise numerical targets.
All markets resolve based on the end-of-day value of the S&P 500 index on October 15, 2026, measured at 4pm EDT. Each individual market has a unique threshold value; if the index closes above its respective threshold (specified as "X or above"), that market resolves to Yes. All markets close on October 15, 2026, and expire either when the index value is officially released or one week after the close date, whichever comes first. The Exchange has applied specific modifications to the Source Agency and Underlying for index markets as detailed in the Kalshi Rulebook.