Stablecoin market capitalization has fallen to a six-month low, the sector's first sustained contraction in four years. The pullback comes as the GENIUS Act's ban on stablecoin yields pushes capital toward tokenized Treasuries that still pay a return.
The global stablecoin market has shed roughly $10 billion in market capitalization over the past 10 weeks, sliding to a six-month low. It is the sector's worst stretch since the Terra implosion of 2022, and its first sustained contraction in four years.
Worst stretch since the Terra collapse
Stablecoins peaked in May 2026 somewhere in the $300 billion to $316 billion range. By late July, total market cap had settled between $300 billion and $310 billion, a decline of roughly 3%. The last time the sector contracted this sharply was May 2022, when the Terra/Luna collapse wiped out 26% of the market in a matter of days.
USDT, the dominant force in stablecoin markets, shed about $6 billion in market cap, dropping from around $190 billion in May to approximately $184 billion by late July. USDC declined from a March peak near $80 billion to roughly $74 billion over the same period.
GENIUS Act pushes capital toward tokenized Treasuries
The most compelling explanation for the outflow traces back to Washington. The GENIUS Act, enacted in July 2025, established a federal regulatory framework for payment stablecoins, treating them as payment instruments rather than investment vehicles and barring them from paying yield.
Tokenized Treasury products, which let investors hold on-chain representations of US government debt, have surged to around $16 billion in assets. Because these products pay Treasury yields with similar liquidity, holding a zero-yield stablecoin increasingly looks like leaving money on the table.
Usage climbs even as holdings shrink
Even as market cap contracted, stablecoin transaction volumes hit record highs: June 2026 adjusted transaction volume reached $1.79 trillion, a sharp annual increase. The split between shrinking holdings and rising usage suggests stablecoins are shifting from a hybrid savings-and-spending instrument toward a more purely transactional role.
A shrinking stablecoin supply has historically correlated with reduced buying power on exchanges, since less capital sits ready in USDT and USDC to rotate into Bitcoin, Ethereum, or altcoins on short notice. Tether and Circle now face a regulatory environment that bars them from competing on yield, leaving distribution, trust, and liquidity as their remaining advantages.
The market is stratifying: stablecoins are becoming the checking account of crypto, while tokenized Treasuries and similar instruments become the savings account. The risk is whether this orderly shift turns disorderly — a major issuer stumbling, or a regulatory surprise, could cascade into liquidity concerns across DeFi protocols that rely on stablecoin deposits as collateral.
Source: Crypto Briefing
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