Tether USDt, often referred to as USDT, is a type of cryptocurrency known as a stablecoin. It is designed to maintain a stable value by being pegged to traditional fiat currencies, such as the US Dollar, at a 1:1 ratio. This stability is achieved by holding reserves of the fiat currency equivalent to the amount of USDT in circulation. Users often use USDT as a means to trade and store value in the crypto market without being subject to the high volatility typically associated with other cryptocurrencies.