TOTAL VOLUME:
$154.6b
24H VOL:
$333,432,169
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,971,286,090
419,492
Markets across
40,634
events
MATCHED EVENTS:
4,654
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 12, 11:00 AM EST
Kalshi
This set of markets focuses on predicting the performance of a major stock market index at a specific future date and time. Each market represents a different threshold value that the index must exceed to resolve positively. These markets allow participants to speculate on the future health and growth of the broader market.
All markets resolve based on the S&P 500 index value at 11am EDT on October 12, 2026. Each individual market has a specific threshold; if the index closes above that threshold at the specified time, the market resolves to Yes, otherwise No. Markets close on October 12, 2026, and expiration occurs at the sooner of the first official data release or one week after the close date. All markets follow modified source agency and underlying rules for indices as per the Kalshi Rulebook.