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: Apr 20, 7:00 PM EST
Kalshi
This event concerns the closing value of the S&P 500 stock market index on April 20, 2026. The market will resolve affirmatively regardless of where the index closes, as every possible outcome across the entire range of values is covered by the resolution criteria.