US prediction markets 2026: Kalshi and Polymarket near half of iGaming interest
Kalshi and Polymarket together hold nearly half of US sports-betting interest on Blask in 2026 — a share that already rivals the traditional sportsbook stack. By that point, Kalshi was already offering sports contracts to US users, while Polymarket had resumed operating in the US market shortly before the tournament, following its return under federal […]