TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 12, 4:00 PM EST
Kalshi
This set of markets tracks the performance of a major stock market index on a specific date, resolving based on whether the index closes above various threshold values. Each market represents a different threshold, allowing participants to speculate on the exact level of the index at the close of trading on that day.
All markets in this event resolve based on the end-of-day value of the S&P 500 index on August 12, 2026, at 4pm EDT. Each individual market has a specific threshold value; if the index closes above that threshold (e.g., 7,600.9999 or higher), the market resolves to 'Yes.' If the index closes at or below the threshold, it resolves to 'No.' All markets close on August 12, 2026, and expiration occurs at the sooner of the official index data release or one week after the close date. The Exchange has applied specific modifications to the source agency and underlying for index markets as per the Kalshi Rulebook.