TOTAL VOLUME:
$154.5b
24H VOL:
$271,200,656
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,922,627,141
420,368
Markets across
40,352
events
MATCHED EVENTS:
4,484
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 12, 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 assess where they believe the market will land at the end of the trading day.
The event resolves based on the end-of-day value of the S&P 500 index on October 12, 2026, with each market corresponding to a specific numerical range. If the index closes within a market's defined range, that market resolves to Yes; otherwise, it resolves to No. All markets close on October 12, 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.