Polymarket US launches 5-minute crypto up or down markets

The CFTC-regulated app now lets US users predict whether BTC, ETH, SOL and XRP will finish higher or lower over a five-minute window Polymarket US has rolled out five-minute up-or-down markets for four of crypto’s biggest names: Bitcoin , Ether, Solana and XRP . The launch, announced on October 27, 2026, gives users of the CFTC-regulated app a much faster way to take a view on price direction. The setup is simple. Each market asks one yes-or-no question: will this token’s price end the five-minute window higher or lower than where it started?