Stablecoins Cross $320 Billion, With Two Issuers Holding Most of It
Total supply topped $322 billion in June, with Tether at roughly $187 billion and Circle at about $75 billion — a combined 83% share that makes the market a duopoly with federal charters.
The stablecoin market crossed $322 billion in June, up from roughly $308 billion at the end of 2025 and from about $150 billion at the start of 2024.
The growth has been steady rather than spectacular this year — a gain of a few percent over six months. The concentration has not changed at all. Tether's token accounts for roughly $187 billion, about 59% of supply, and Circle's for about $75 billion, roughly 24%. Together they hold 83% of the market.
Why the growth slowed
Stablecoin supply is, in large part, a measure of capital staged for crypto trading. When prices fall and trading volumes decline, supply contracts as holders redeem for dollars.
Bitcoin is roughly 49% below its October record, exchange-traded funds have seen billions in redemptions, and speculative activity has cooled. Supply holding roughly flat through that is arguably a sign of resilience.
The other driver is payments, which is genuinely growing. Cross-border transfers, business-to-business settlement and treasury operations at crypto-native firms produce demand for tokens that has nothing to do with speculation, and those volumes have continued rising even as prices fell.
The regulatory transformation
The market that crossed $320 billion this year is a fundamentally different one from a year ago. Federal legislation established a framework for permitted payment stablecoin issuers, the OCC has proposed detailed implementing rules, and several issuers now hold national trust charters — with one receiving final approval to operate a federally chartered trust bank in July.
Full reserve backing in high-quality liquid assets, bankruptcy-remote structures, redemption standards and a presumption against paying holders yield are now the rules of the road rather than industry practices adopted voluntarily.
What the forecasts assume
Projections from large banks range from roughly $1.9 trillion to $4 trillion by 2030. Those numbers assume stablecoins move beyond crypto trading into mainstream payments — replacing correspondent banking for cross-border transfers and settling a meaningful share of commerce.
That is a bet on infrastructure adoption rather than on token prices, which makes it the most interesting forecast in the industry and the least dependent on whether bitcoin recovers.
