The snapshot from Sep 25, 4:30 PM ET isn’t kept: this page’s figures are live, and older snapshots aren’t stored yet. This is the latest, at its own permanent address: https://defirate.com/prediction-markets/volume/snapshot/2026-09-25T1730/.
Permanent snapshot · never updated
VolumeEvery figure as of Sep 25, 5:30 PM ET
A frozen record for citation. Numbers on the live page change as markets move; these don’t. Methodology · Live source records
Prediction market volume, 30 days
$16.3BThe dollar value of all contracts traded on Kalshi, Polymarket and Polymarket US, Aug 26-Sep 24, 2026.
Sum of daily traded volume across the three venues.
Measure: Traded volume. Cited as: “Prediction markets traded $16.3 billion in 30 days” (DeFi Rate volume data).
Data sources (1)
Kalshi volume vs. prior 30 days
+72%Kalshi’s 30-day volume ($13.8B) compared with the 30 days before ($8.0B).
We’re double-checking this figure with our data provider; it will be updated here if it changes.
Measure: Traded volume. Cited as: “Kalshi’s volume rose 72% month over month” (DeFi Rate volume data).
Data sources (1)
Prediction market volume, 24 hours
$587MDollars traded across the three venues in the 24 hours to Sep 25, 2026.
Sum across venues.
Measure: Traded volume. Cited as: “$587 million traded in 24 hours” (DeFi Rate volume data).