TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 10, 4:00 PM 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 direction of market trends without needing to predict the exact value.
All markets resolve based on the S&P 500 index value at 4pm EDT on August 10, 2026. Each individual market has a specific threshold: if the index closes above the stated threshold (e.g., 7549.9999 or higher), that market resolves to 'Yes'; otherwise, it resolves to 'No'. All markets close on August 10, 2026, and expiration occurs at the sooner of the first official data release or one week after the close date. The Exchange has applied modifications to the Source Agency and Underlying for index markets as per the Kalshi Rulebook, ensuring consistent data sourcing and valuation methodology across all thresholds.