Stablecoins are a cryptocurrency with a fixed or stable exchange rate, the quotes of which are pegged to the US dollar, euro or exchange commodities (gold, oil).
This is a universal unit of calculation, convenient for both trading and capital storage.
One of the most popular stablecoins is USDT from Tether. It was designed as a “bridge” between fiat money and cryptocurrency.
Its advantages are absolute transparency of calculations and high speed of transactions.
USDT itself is not an investment instrument, but is successfully used as a means of payment. For example, it can be used to purchase all digital assets offered by IWI GS.