The November edition of our U.S. Sports Betting Market Monitor is now live. U.S. OSB GGR rose +11% y/y in 12M through Sep-25, but duopoly degradation accelerated to a record low ~64% GGR share as challengers continued to converge. 3Q25 results were noisy—NFL outcomes pressured net hold and promo intensity skewed higher—but BetMGM emerged as the largest NGR share gainer and outperformed across nearly all KPIs.
A major storyline this month: the U.S. OSB market is splitting over prediction markets. DraftKings, FanDuel, and Fanatics are preparing CFTC-regulated PM launches, while Caesars and BetMGM sit out amid regulatory and licensure risk. We map adopter vs. abstainer dynamics and the growing policy tension at the state level.
Also inside: Missouri OSB GGR forecast ahead of its Dec. 1 launch; snippets from our 2H25 OSB app testing round; our latest ROI map benchmarking promo efficiency; and a BettorMetrics-driven analysis of live NBA trading performance by operator.
