Tether (USDT)

Tether stays pegged at $0.9999 with a negligible 0.05% weekly movement, confirming its role as the dominant stablecoin. This stability stands out against #1 Bitcoin's -2.12% weekly slide, making USDT a preferred shelter during sell-offs. Its tight peg ensures traders can park capital without worrying about volatility — a critical feature when top cryptocurrencies dip by up to 3.61% in a day, and daily volume exceeds $40 billion.