TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: May 13, 1:59 AM EST
Kalshi
This event concerns the highest temperature recorded at Chicago Midway Airport on May 12, 2026, as documented by the National Weather Service. Regardless of whether the temperature falls into any of the specified ranges, the market resolves to Yes, meaning this is a certainty bet that will always resolve affirmatively since every possible temperature outcome is covered by the resolution criteria.