Tether (often referred to by its currency codes, USD₮ and USDT, among others) is a cryptocurrency stablecoin, launched by the company Tether Limited Inc. in 2014.As of January 2024, Tether's website lists fourteen protocols and blockchains on which Tether has been minted.[1]

Tether Denominations Symbol ₮ CodeUSD₮, EUR₮, CNH₮, XAU₮, MXN₮[1]Development White paperTether White Paper.pdfInitial release2014-10-06 16:39:15 UTC[2]LedgerCirculating supplyUSD₮ 96,036,749,591.54; EUR₮ 36,387,340.03; CNH₮ 20,503,468.90; XAU₮ 246,524.33; MXN₮ 19,562,400.00 (Jan 2024)[1]Valuation Exchange ratePegged to reference fiat currency or goldWebsiteWebsitetether.to

Tether has been criticized for a lack of transparency and verifiability of its claimed fiat reserves. In 2021, the company was fined by regulators for only maintaining full reserves during 27.6% of the days in the period from 2016 to 2018[4] as well as for failing to present audits showing sufficient asset reserves.[5][6][7]

It is the largest cryptocurrency in terms of trading volume, commanding 64% of the market share among stablecoins and having surpassed Bitcoin in 2019 to become the most traded cryptocurrency in the world.[8][9][10] As of January 2024, Tether had over $96 billion in circulation.[11][1]

Tether Limited is owned by the British Virgin Island-based company iFinex Inc., which also owns the Bitfinex cryptocurrency