TheBlock
Total stablecoin supply has just crossed $300 billion, but the milestone masks a flat month for the category. Tether's USDT added more than $5 billion over the past 30 days, while USDC, Ethena's USDe, and PayPal's PYUSD collectively shed roughly $4.2 billion in the same window. Net category growth lands near $900 million — about 0.3% of supply — a stall by any meaningful measure.
Why it matters
The composition of that growth is the real story. Every marginal stablecoin dollar entering the system is a USDT dollar replacing a redeemed USDC, USDe, or PYUSD dollar. The category is expanding on the marquee metric but concentrating inside a single issuer, a setup that looks less like adoption and more like rotation. Ethena's USDe is the cleanest expression of the pressure: down 28% over the last month and roughly 34% year to date, with persistent outflows accelerating after the October 10 deleveraging event compressed perpetual funding rates and broke USDe's yield mechanism.
Market impact
The losers are not random. USDe's synthetic-dollar yield depended on positive perp funding; once that deflated, capital rotated to overcollateralized alternatives — Sky's USDS is up 48.9% year to date, World Liberty Financial's USD1 is up 33.7%. PYUSD's 13% monthly decline suggests its institutional-distribution thesis has yet to translate into supply growth. For the new wave of GENIUS Act-compliant and bank-issued entrants, the read is direct: displacing USDT will require higher yields, better distribution, or a regulatory wedge — and none of the second-tier issuers have shown any of the three yet.
Frequently asked questions
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Why is stablecoin supply growth stalling despite crossing $300B?
Net monthly growth is only about 0.3% of supply. Tether added more than $5B, but USDC, USDe, and PYUSD collectively shed roughly $4.2B — the category is concentrating inside USDT rather than expanding meaningfully.
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Why is USDe supply dropping so sharply?
Ethena's synthetic dollar depends on positive perpetual funding rates. After the Oct 10 deleveraging event compressed perp funding, USDe's yield mechanism broke down and the token is down about 28% in a month and 34% year to date.
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Which stablecoins are gaining supply while USDe and PYUSD lose it?
Overcollateralized alternatives are absorbing the rotation: Sky's USDS is up about 48.9% year to date and World Liberty Financial's USD1 is up about 33.7%. Investors are moving toward yield models that don't depend on perp funding.
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What does this mean for GENIUS Act-compliant stablecoin entrants?
New bank-issued and GENIUS Act-compliant issuers are getting a harder start than expected. Displacing USDT requires higher yields, better distribution, or a regulatory wedge — and none of the second-tier stablecoins have demonstrated any of those capabilities yet.
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Does flat stablecoin supply growth matter for crypto liquidity?
Yes — stablecoins are the primary on-ramp for crypto trading capital. When aggregate supply stalls, available dry powder for spot buying, leverage, and DeFi activity doesn't expand, which can cap liquidity-driven rallies even when headline numbers look bullish.
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