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Matthew Bain is DeFi Rate's prediction market analyst, covering volume reporting on Kalshi, Polymarket, and Polymarket US. He spent six years as a sports reporter and editor in the USA TODAY Network, primarily at the Des Moines Register.
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7 stories, newest first
- Kalshi Volume Sets 2026 High at $15.27B With First $3 Billion Day
Kalshi set a new 2026 high with $15.27 billion in weekly contract volume, and also recorded its first $3 billion day.
- Prediction Markets Surge to $14.1B As NFL Season Kicks Off
NFL football, US Open tennis and esports fueled a prediction-market surge, pushing Kalshi and Polymarket Global to $14.1B in weekly volume as Kalshi captured a record 92.0% share.
- Prediction Markets Grow 14% As NFL Season Sets Up Major Growth
Prediction markets hit $12.9B in weekly volume as Kalshi takes 92% share, while the NFL season could drive billions more in prediction market trading.
- Prediction Markets Top $11B in Contract Volume as Sports, Combos Drive Kalshi Growth
Prediction markets surged to $11.26B weekly contracts as Kalshi set a record, grabbed 90.4% market share, and powered growth through sports and combo markets.
- BMW Championship, US Open Drove Huge Week For Sports On Prediction Markets Volume
Prediction markets surged to $3.36B in weekly volume, with sports dominating 76.5% of trading across Kalshi and Polymarket Global.
- Prediction Market Volume Rebounds Above $10 Billion as Politics Surges Ahead of NFL Season
Prediction markets rebound as trading tops $10 billion, with Kalshi leading the surge and a growth in political markets driving activity.
- Weekly Prediction Markets Volume Falls Below $10B For First Time Since June
Prediction markets cool after the World Cup, but Kalshi gains more share as sports and Fed markets drive trading.