USDC Supply Hits Record $81.1B, Narrows Gap With Tether on Ethereum
USDC’s supply climbed to a new peak of $81.1 billion as of March 13, 2026, tightening the gap with Tether’s Ethereum supply, which sits near $96 billion. The move marks continued inflows into dollar-pegged tokens and reflects broader demand for on-chain liquidity across exchanges and decentralized finance protocols.
The trend matters because larger stablecoin pools can lower trading friction and support deeper DeFi markets, while intensifying competition between issuers like Circle and Tether. Regulators and market participants will watch whether this growth translates into more on-chain activity, shifting market share, or changes in reserve transparency and risk management practices.