VolumeWhere every number comes from
The data, rate or quote types and calculation behind each figure on the Volume page. Data as of Oct 9, 12:30 AM ET; this page updates with it. For a frozen copy, use the snapshot.
Venues, 30 days
Volume by category
Most traded markets
Every figure and contract
Prediction market volume, 30 days
$90.0BThe dollar value of all contracts traded on DraftKings Predictions, Gemini, Kalshi, Novig, Polymarket, Polymarket US, ProphetX, Rothera and Underdog Exchange, Sep 9-Oct 8, 2026.
Sum of daily traded volume across the nine venues.
Measure: Traded volume. Cited as: “Prediction markets traded $90.0 billion in 30 days” (DeFi Rate volume data).
Data sources (1)
Kalshi volume vs. prior 30 days
+59%Kalshi’s 30-day volume ($68.0B) compared with the 30 days before ($42.7B).
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 59% month over month” (DeFi Rate volume data).
Data sources (1)
Prediction market volume, 24 hours
$2943MDollars traded across the nine venues in the 24 hours to Oct 9, 2026.
Sum across venues.
Measure: Traded volume. Cited as: “$2943 million traded in 24 hours” (DeFi Rate volume data).