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: May 25, 7:59 PM EST
Kalshi
Airport passenger screening volumes on May 25, 2026 will be measured to determine travel activity levels across U.S. airports on this date. The volume of passengers screened serves as an indicator of domestic and international air travel demand.