Sports prediction markets trade $646M in the last 24 hours, down 19%, with Kalshi at $302M, DeFi Rate reports

Sports prediction markets recorded $646M in trading volume over the last 24 hours, down 19%, according to DeFi Rate. Kalshi accounted for $302M of that activity in the update published Oct 26, 2026, at 5:24 PM ET.

The figures put Kalshi’s volume alongside the broader sports-market total, but the supplied material does not give a platform-by-platform breakdown of the remaining activity or explain the decline.

Game prices alongside trading activity

DeFi Rate’s sports dashboard covers NFL, NBA, MLB, UFC and NHL markets, displaying live scores, prices, title favorites and the most-traded markets. Its listings also identify upcoming games and compare prediction markets with sports betting.

Among the listed Monday games, DAL was priced at 67% against PHI in the NFL matchup scheduled for 8:15 PM. In the NBA, BOS stood at 87% against CHI for the 7:30 PM game, while OKC was at 75% against PHX for the 8 PM game, according to DeFi Rate.

What it means for prediction markets

• Volume and probabilities measure different things. The 19% decline describes trading activity, not a corresponding change in teams’ chances of winning.
• Kalshi’s contribution is substantial but not a complete competitive picture. Its $302M total is disclosed; comparable figures for other platforms are not provided.
• The cause of the slowdown remains unclear. The supplied data does not establish whether the decline reflects the game schedule, participation or another factor.