TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 27, 4:00 PM EST
Kalshi
This set of markets tracks 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 settle as 'Yes'. Investors use these markets to speculate on or hedge against future movements in the index's value.
All markets share the same core resolution mechanism: each resolves to 'Yes' if the S&P 500 index value at 4pm EDT on July 27, 2026 exceeds a specific threshold defined in the primary rule (e.g., above 7249.9999, above 7254.9999, etc.). The thresholds vary incrementally across markets, allowing participants to bet on different levels of index performance. All markets close on July 27, 2026, and expire at the sooner of the first official release of the index value or one week after the close date. The Exchange has applied modifications to the source agency and underlying for index markets per the Kalshi Rulebook, but these modifications do not alter the fundamental resolution criteria or timing outlined above. Secondary rules are consistent across all markets and govern closure and expiration timing uniformly.