TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 17, 3:00 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 has a different threshold, allowing participants to speculate on whether the index will reach or exceed various levels by the specified closing time.
All markets in this event resolve based on the S&P 500 index value at 3pm EDT on August 17, 2026. For each individual market, if the index value at that exact time is above the specified threshold (e.g., 7624.9999, 7629.9999, etc.), the market resolves to "Yes"; otherwise, it resolves to "No". All markets close on August 17, 2026, and expiration occurs at the sooner of the first official release of the index data or one week after the closing date. The Exchange has applied modifications to the Source Agency and Underlying for index markets as per the Kalshi Rulebook.