Stablecoin growth has hit a standstill this year, with the total supply of these digital assets rising just 0.4% to $305 billion in the first nine months of 2026. Despite this stagnation, the usage of stablecoins for payments has surged, with the total value of payments involving these tokens climbing 45% to $482 billion, and the number of transactions jumping 71% to 1.04 billion. Circle, the issuer of the second-largest stablecoin, reported a similar trend in its third-quarter earnings, with $USDC's circulating supply remaining unchanged at $73.9 billion, even as on-chain transaction volume surged 49% to $13.9 trillion.
The divergence between stablecoin supply and usage has complicated expectations for an industry that anticipated rapid expansion in 2026. At the start of the year, stablecoins looked like a sure bet, with their supply growing about 50% in 2025. However, outstanding stablecoin balances have been stuck between $300 billion and $320 billion over the past 12 months, leading Standard Chartered to push its forecast for a $2 trillion stablecoin market to 2030 from 2028.
Analysts and stablecoin executives argue that the flat market capitalization does not necessarily mean adoption has stalled. Instead, it may reflect a shift in how the tokens are used, with fewer dollars being added for cryptocurrency trading, even as existing balances facilitate more payments. However, not every transfer is a payment, and blockchain data firm Allium counted $97.9 trillion in raw stablecoin transfers in the first nine months of the year, with only $482 billion of that being actual payments.
One payment use that has drawn attention this year is agentic payments, where AI software shops or pays for goods and services on a user's behalf. However, experts say these payments will add transactions rather than stablecoin supply. For example, Stripe's Link began rolling out $USDC-funded balances that allow eligible U.S. users of the Instinct shopping agent to make purchases without approving each checkout. Even as agent payments multiply, the money involved stays tiny, with Allium counting 68.3 million agent payments in the third quarter, worth just $3.7 million in total.