The stablecoin market has contracted by approximately $15 billion since mid-May 2026, marking its largest decline since the TerraUSD crash in 2022. Data from defillama.com reveals that the total supply fell from a peak of around $322 billion to about $307.5 billion by early August. The most severe reduction occurred in June, with $11.4 billion exiting the market within a single month.
Dominance of USDT and USDC in the Downturn
Tether's USDT, the largest stablecoin by market cap, dropped from around $189 billion in early May to $183.2 billion by August 2. Circle's USDC also shrank from a March high near $80 billion to roughly $72 billion over the same period. These two stablecoins accounted for the majority of the $15 billion contraction. Smaller tokens like Sky’s USDS and Ethena’s USDe experienced double-digit percentage losses, although some alternatives, such as Global Dollar (USDG), bucked the trend and saw growth during this period.
Regulatory Changes Drive Shift Toward Tokenized Treasuries
The new federal framework established by the GENIUS Act in July 2025 and reinforced by the Office of the Comptroller of the Currency (OCC) early this year prohibits licensed stablecoin issuers from offering interest or yield on their tokens. This regulatory change has pushed yield-seeking investors away from stablecoins and toward tokenized Treasury products, which have grown closer to $17 billion in assets. Investors who previously parked cash in USDT or USDC for returns must now reposition their capital.
This content is for informational purposes and does not constitute financial advice.
