TOTAL VOLUME:
$154.4b
24H VOL:
$230,589,906
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,885,293,300
410,482
Markets across
40,213
events
MATCHED EVENTS:
4,340
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 19, 4:00 PM EST
Kalshi
This event tracks the performance of a major stock market index on a specific date, dividing possible outcomes into narrow numerical ranges. Each range represents a different potential closing value for the index, allowing participants to speculate on where the market might land at the end of the trading day. The resolution depends solely on the index's final value at the specified time.
The event resolves based on the end-of-day value of the S&P 500 index on October 19, 2026, at 4pm EDT, with each market corresponding to a specific numerical range. If the index closes within a market's defined range, that market resolves to Yes; all others resolve to No. Markets close on October 19, 2026, and expiration occurs at the sooner of the first official data release or one week after the closing date. The Exchange has modified the Source Agency and Underlying for indices markets per the Kalshi Rulebook.