Tether (USDT)

Tether holds a stable $1 peg with a market cap of $184.0 billion, making it the third-largest cryptocurrency and the top stablecoin by far—its market cap more than doubles that of BNB at #4. With zero daily price volatility and over $50 billion in 24-hour trading volume, it boasts the highest liquidity in crypto, outpacing Bitcoin's trading volume by roughly 67%. Its reserves are fully backed by U.S. Treasuries and cash equivalents, ensuring reliability for traders and exchanges worldwide.