Prediction Markets Surge on Dec. 19, 2025: Robinhood’s NFL “Combos,” DraftKings’ New Predictions App, Coinbase Lawsuits, and Polymarket’s Latest Turbulence
On Friday, December 19, 2025, the fast-growing world of prediction markets—often framed as “event trading” and sometimes criticized as a backdoor to sports betting—delivered a cluster of developments that show just how quickly the category is moving from crypto niche