Coinspeaker Tether (USDT) Unseats XRP Again as Third Largest Cryptocurrency by Market CapRevised data from Messari and Coin Metrics shows that USDT has once again displaced XRP as the third-largest crypto by market cap. USDT growth shows the increasing role of stablecoins in the industry.Tether (USDT) Unseats XRP Again as Third Largest Cryptocurrency by Market Cap