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 27, 4:00 PM EST
Kalshi
This market tracks the performance of a major stock market index on a specific date, allowing participants to speculate on whether the index will surpass certain threshold values by the end of trading that day.
All markets resolve based on the end-of-day value of the Nasdaq 100 index on October 27, 2026, at 4pm EDT. Each market has a unique threshold value; if the index closes above the specified threshold (e.g., 26,900, 26,910, etc.), that market resolves to 'Yes.' Markets close on October 27, 2026, and expiration occurs either when the index value is officially released or one week after the close, whichever comes first. The Exchange has updated the data source and underlying rules for index markets as per the Kalshi Rulebook.