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 17, 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. Investors and analysts often monitor such movements to gauge market sentiment and make informed decisions about portfolio adjustments or strategic investments.
The event consists of thirty markets, each corresponding to a specific range of potential end-of-day values for the S&P 500 index on August 17, 2026. A market resolves to 'Yes' if the index's closing value falls within its defined range; all other markets resolve to 'No.' All markets close on August 17, 2026, and expiration occurs at the sooner of the official data release or one week after that date. The underlying data source and agency for index values have been modified per the Kalshi Rulebook for indices markets, ensuring standardized resolution criteria across all participating markets.