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 27, 7:00 PM EST
Kalshi
The S&P 500 index will close on April 27, 2026, representing the aggregate performance of a broad selection of large-cap U.S. companies across various sectors. This event captures the end-of-day value of this widely-followed benchmark stock index.