Stablecoin Supply Sheds $15 Billion in Biggest Drop Since Terra

June alone erased $11.41 billion, the steepest monthly contraction since TerraUSD's collapse in May 2022. Tether and Circle absorbed the bulk of the loss.

Supply by issuer

USDT declined from approximately $189 billion in early May to $183.216 billion as of August 2. USDC fell from a March peak near $80 billion to $72.069 billion. Together, the two issuers account for the sector's headline contraction. Smaller issuers — Sky's USDS and Ethena's USDe — posted double-digit percentage losses. Global Dollar (USDG) was a net gainer, alongside several tokenized cash products.

Tether's Q2 disclosure, reported across multiple outlets, showed excess reserves declining by more than $4 billion to roughly $4.11 billion above stablecoin liabilities. Tether confirmed USDT remains fully backed and posted a $1.5 billion quarterly profit. Pluang's July 31 report pegged USDT supply at $184.6 billion; DefiLlama's August 2 read showed $183.216 billion.

Regulatory and market drivers

The GENIUS Act, signed July 2025, set the first federal framework for payment stablecoins and bars licensed issuers from paying interest or yield on holdings. The OCC's early-2026 proposed rules reinforced the classification of stablecoins as transaction tools rather than savings vehicles. Yield-seeking capital rotated accordingly — tokenized U.S. Treasury and money-market products expanded into the high teens of billions by late July, with broader tokenized real-world asset holdings above $32 billion.

Collateral demand softened as Bitcoin and major cryptocurrencies declined through Q2 2026. Lower trading volume translates directly to reduced stablecoin parking. Europe's MiCA regime added regional pressure by restricting noncompliant tokens on European venues.

Throughput diverges from float

The supply contraction masks record network activity. The Visa Onchain Analytics Dashboard, powered by Allium Labs, recorded adjusted stablecoin transaction volume of approximately $1.8 trillion in June 2026 — up 63% month-over-month. USDC processed $1.21 trillion of that total against USDT's $576 billion. Over a rolling 30-day window, stablecoins settled $5.2 trillion across 1.6 billion transfers; adjusted volume reached $1.3 trillion across 214.1 million transactions. Retail-sized transfers accounted for $7.1 billion across 144.6 million transactions.

Liquidity is migrating from custodial float in yield-bearing stablecoins into tokenized Treasuries and active transactional rails. For market participants, the regulatory reshuffling elevates broker scrutiny on crypto intermediaries as a live risk factor. Tether's $4.11 billion reserve buffer and the next USDT attestation cycle are the data points to verify next.