TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Feb 17, 7:00 PM EST
Kalshi
The S&P 500 stock index will be tracked on February 17, 2026, with observations at various price thresholds throughout the trading day to assess broad market performance.