Tether
The world's largest stablecoin, pegged 1:1 to the U.S. dollar and used as the backbone of crypto trading.
Overview
Tether (USDT) is the first and most widely used stablecoin in cryptocurrency, launched in 2014 originally under the name 'Realcoin.' Each USDT token is designed to maintain a 1:1 peg with the U.S. dollar, meaning one USDT should always be worth approximately one dollar. Tether achieves this peg by holding reserves of cash, cash equivalents, U.S. Treasury bills, and other assets that back the total supply of USDT in circulation.
USDT is issued on multiple blockchains including Ethereum, Tron, Solana, Avalanche, and many others, making it highly accessible across the crypto ecosystem. It consistently ranks as one of the most traded crypto assets by daily volume, often surpassing even Bitcoin. For many traders and investors, USDT serves as a dollar-denominated safe haven within the crypto markets — a place to park value during volatile periods without converting back to fiat currency.
Tether has faced scrutiny regarding the transparency of its reserves and its relationship with the Bitfinex exchange. However, the company has significantly increased its attestation reporting and now publishes quarterly reserve breakdowns. As of recent reports, U.S. Treasury bills make up the vast majority of Tether's reserves, making its backing increasingly conservative and transparent.
USDT is the de facto unit of account in cryptocurrency markets. Most trading pairs on major exchanges are denominated in USDT, and it serves as the primary bridge between fiat currencies and crypto assets. Its availability across dozens of blockchains makes it the most liquid and accessible dollar-denominated token in the world. For billions of people in developing countries, USDT provides access to dollar-denominated savings without needing a U.S. bank account.
How It Works
The Basics
Tether operates as a centralized stablecoin — the company Tether Limited mints new USDT tokens when customers deposit dollars and burns (destroys) tokens when customers redeem them. The peg is maintained through arbitrage: if USDT drops below $1, traders buy it cheaply and redeem for $1 from Tether, profiting from the difference.
Pros & Cons
- Most liquid stablecoin with the highest trading volume and broadest exchange support
- Available on dozens of blockchains, providing maximum flexibility
- Serves as the primary trading pair for most cryptocurrency markets worldwide
- Provides dollar-denominated savings access to people in countries with unstable currencies
- Reserves are now predominantly U.S. Treasury bills, the safest fixed-income asset
- Centralized — Tether Limited can freeze or blacklist addresses holding USDT
- Historical lack of transparency about reserves, though this has improved significantly
- Has never undergone a full independent audit (relies on attestations instead)
- Regulatory risk — governments may impose restrictions on offshore stablecoin issuers
- Concentrated counterparty risk — value depends entirely on Tether Limited's solvency
Use Cases
- Trading pair for buying and selling cryptocurrencies on exchanges
- Storing value in dollar terms during crypto market downturns
- Cross-border remittances — sending dollars globally in minutes for pennies
- Dollar-denominated savings for individuals in countries with high inflation
- Settlement currency for over-the-counter (OTC) institutional crypto trades
Technical Details
- Consensus
- N/A (Centralized token issued on multiple host blockchains)
- Launch Year
- 2014
- Founder
- Brock Pierce, Reeve Collins, Craig Sellars (Tether Limited)
- Max Supply
- No hard cap
- Blockchain
- Multi-chain (Ethereum, Tron, Solana, Avalanche, and others)
- Website
- tether.to