Stablecoin Market Cap Hits $322B ATH on USDC Surge

Stablecoin market capitalization climbed to about $322 billion after a $2.25 billion inflow over one week in April 2026. The weekly gain contributed to a first-quarter pickup in trading activity and push in overall supply.

Data for Q1 2026 show USDC supply expanded roughly 220% since late 2023 to about $78 billion. Total crypto trading volume for Q1 reached $8.3 trillion. Stablecoins represented about 13% of total crypto market value while the wider crypto market contracted about 21% over the period.

Industry data indicate the total stablecoin market cap ended the quarter above $300 billion with a 0.5% rise for Q1, equal to about $1.6 billion. On-chain stablecoin transaction activity rose 51% in Q1 to exceed $28 trillion, a new quarterly record.

USDC transfers accounted for nearly 80% of stablecoin transaction volume in the quarter and about 85% of bot-driven activity. After adjusting for automated transactions, USDC represented roughly 63% of annualized organic stablecoin volume. USDC supply rose by about $2 billion during Q1.

Tether’s USDT kept the largest market share at about 59.18% but saw a supply decline of roughly $3 billion in Q1. Active USDT addresses increased to about 2.87 million, up roughly 30%. Measured 30-day transaction volume for USDT climbed about 140% to $60.4 billion, while estimated organic USDT volume fell about 17%.

Automated trading activity accounted for about three-quarters of stablecoin transaction volume in Q1, the highest level since mid-2024. Bot-driven activity was notably heavy on Ethereum and Tron networks, at about 72% and 54% of stablecoin volume on those chains. Monthly transaction volume peaked in March at about $7.5 trillion.

Yield-bearing stablecoins contributed more than half of the net increase in stablecoin supply for the quarter. The subsector grew by over 22% in Q1, adding roughly $4.3 billion in market value and reaching about $3.7 billion in total size. Individual tokens posting large gains included USDY, which rose more than 150% quarter to quarter, and sUSDS, which added about $2.5 billion in market value.

Stablecoins accounted for nearly 75% of all crypto trading volume in Q1 2026. Industry projections that apply a 15% annual growth rate estimate the stablecoin market could exceed $600 billion by 2030 if major jurisdictions finalize related regulatory frameworks.

The quarter’s data show differing trends across stablecoins: USDC expanded its share of adjusted on-chain activity while USDT’s measured organic activity declined and on-chain metrics point to increased off-chain trading use. Automated transactions and the rise of yield-bearing products were large components of Q1 volume and supply growth.