TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Mar 23, 7:00 PM EST
Kalshi
The S&P 500 index will close on March 23, 2026, encompassing a wide spectrum of possible closing values across the major U.S. equity market. This event monitors the overall performance of large-cap stocks on that particular trading day.