Permanent snapshot · never updated
VolumeEvery figure as of Oct 20, 9:30 AM 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
$105.7BThe dollar value of all contracts traded on DraftKings Predictions, Gemini, Kalshi, Novig, Polymarket, Polymarket US, ProphetX, Rothera and Underdog Exchange, Sep 20-Oct 19, 2026.
Sum of daily traded volume across the nine venues.
Measure: Traded volume. Cited as: “Prediction markets traded $105.7 billion in 30 days” (DeFi Rate volume data).
Data sources (1)
Kalshi volume vs. prior 30 days
+55%Kalshi’s 30-day volume ($80.0B) compared with the 30 days before ($51.5B).
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 55% month over month” (DeFi Rate volume data).
Data sources (1)
Prediction market volume, 24 hours
$3550MDollars traded across the nine venues in the 24 hours to Oct 20, 2026.
Sum across venues.
Measure: Traded volume. Cited as: “$3550 million traded in 24 hours” (DeFi Rate volume data).