TOTAL VOLUME:
$104.1b
24H VOL:
$114,311,902
24H TRANSACTIONS:
1,083,183,155
OPEN INTEREST:
$1,065,613,191
201,513
Markets across
20,137
events
MATCHED EVENTS:
1,345
PLATFORM COVERAGE:
5
Polymarket:
44%
VS.
Kalshi:
56%
Foundational explainers on how prediction markets work and the concepts behind them.

Calibration, not who-won, is the real test of prediction market accuracy. Here's what large samples of resolved contracts actually show, and where the record breaks down.
Jared Polites · Jul 26