List of top USD Stablecoin coins by market cap. The current USD Stablecoin coin market cap is $348.58B , which has changed by +0.69% in the past 24 hours; the USD Stablecoin coin trading volume is $63.80B, which has changed by -0.01% in the past 24 hours. There are 65 cryptocurrencies in the USD Stablecoin coin list today.