Polymarket launched 5-minute crypto up/down markets on its US app for $BTC, $ETH, $SOL and $XRP, according to WatcherGuru and Cointelegraph.

Polymarket launched 5-minute crypto up/down markets on its US app for $BTC, $ETH, $SOL and $XRP, according to WatcherGuru and Cointelegraph.

Each contract pays $1 to the winning side, with settlement based on index averages and ties going to Up, versus 15-minute contracts on Kalshi, according to DefiantNews.

The Defiant reports the markets use CF Benchmarks prices with taker fees charged separately from the spread: Polymarket Adds Five-Minute Crypto Contracts to US App.