USDC may be smaller than Tether in terms of size, but it packs a big punch. The global stablecoin market grew by 50% in 2025, but two stablecoin giants continue to dominate the industry: Tether ( USDT +0.01% ) and USDC ( USDC +0.01% ). According to the latest Motley Fool stablecoin research, they account for a whopping 90% of the total value of all stablecoins. That leads to an obvious question for crypto investors: Which stablecoin -- Tether or USDC -- is the better buy right now? To answer that question, it's helpful to keep in mind that these two stablecoins are not traditional investments. They are digital ... (full story)