Usdt stablecoin chart on tablet screen close-up

USDT, the largest dollar-pegged stablecoin, dominates the crypto market with liquidity and stability, essential for traders and exchanges.

About this subject

USDT (Tether) is the world's most traded stablecoin, with a market capitalization exceeding $100 billion (2025). Unlike volatile cryptocurrencies like Bitcoin, USDT maintains a 1:1 peg to the US dollar through reserves in traditional assets such as Treasury bills and cash. This feature makes it crucial for traders seeking to lock in profits without leaving the crypto ecosystem, while also providing liquidity on both centralized and decentralized exchanges.

Launched in 2014 by Tether Limited, USDT initially operated on the Bitcoin blockchain via Omni Layer but now runs on multiple networks including Ethereum (ERC-20), TRON (TRC-20), Solana, and Polygon. This multi-chain approach reduces transaction costs and speeds up transfers, though it has sparked debates over reserve transparency. The company has faced investigations by the New York Attorney General and the CFTC, resulting in fines and requirements for quarterly audit reports.

In Brazil, USDT is widely used as a hedge against real depreciation, especially during economic instability. Data from Brazil's Federal Revenue Service shows that stablecoin transactions have surpassed Bitcoin volumes since 2021. Additionally, USDT serves as a primary bridge between fiat and crypto in high-inflation countries like Argentina and Venezuela, acting as a digital store of value.

Despite its dominance, USDT faces competition from other stablecoins like USDC (Circle) and DAI (MakerDAO), which offer greater transparency or decentralization. However, Tether's superior liquidity maintains its leadership, with daily trading volumes often exceeding $50 billion. For novice investors, USDT provides a safe entry point into crypto, combining the stability of the dollar with blockchain efficiency.

Frequently Asked Questions

What is USDT and how does it maintain its dollar peg?

USDT is a stablecoin issued by Tether Limited, designed to maintain a 1:1 peg to the US dollar. The company claims each token is backed by equivalent reserves in traditional assets such as Treasury bills, cash, and other low-risk investments.

Which blockchains support USDT?

USDT is available on multiple blockchains including Ethereum (ERC-20), TRON (TRC-20), Solana, Polygon, Algorand, EOS, Omni (Bitcoin), and others. Each version has different transaction speed and cost characteristics.

Is USDT safe and regulated in Brazil?

USDT's safety depends on Tether's reserve transparency, which has faced investigations in the US. In Brazil, the Federal Revenue Service requires reporting of stablecoin transactions, and usage is legal, but there is no specific regulation from the CVM regarding the asset.