Just wondering. Its always 1 dollar, give or take 2-3 cents some times
Like other cryptocurrencies it uses blockchain. Unlike other cryptocurrencies, each USDT unit is (according to the official Tether web site) 100% backed by USD (USD is held in reserve). Basically, Tether converts cash into digital currency, to anchor the value of the coin to the price of fiat currencies like the US dollar, the Euro, and the Yen.
However, if you are interested in using Tether, I’d advise never storing significant sums in it and always use Tether short-term and with caution.
Tether is directed by some of the same people behind Bitfinex and new Tether accounts flow mostly to Bitfinex. Critics accuse Bitfinex and Tether of running a fractional reserve scheme: more USDT are issued than are backed by fiat dollars. Critics further allege that unbacked Tether accounts are used to artificially inflate the price of Bitcoin for the purpose of market manipulation.