TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: May 21, 1:00 AM EST
Kalshi
This event concerns the maximum temperature recorded in Boston on May 20, 2026, as documented by the National Weather Service. The market appears designed to capture outcomes across the full spectrum of possible temperatures for that date. Regardless of whether the temperature falls below 88°F or exceeds 95°F, the market resolves affirmatively.