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USDT commands nearly $190 billion in market cap, accounting for more than half of the global stablecoin market, yet offers no protocol-native yield to holders. On May 26, 2026, Stable introduced StableEarn, a Morpho-powered vault designed to route USDT deposits into institutional-grade returns backed by US Treasuries and gold. Stable is a USDT-dedicated layer-1 network backed by Bitfinex, Hack VC, and Franklin Templeton.
The launch highlights a long-standing imbalance in the stablecoin economy. Tether continues to retain the full interest spread generated from Treasury bill reserves backing USDT, while users themselves earn nothing on idle balances. That structure helped Tether generate more than $10 billion in profit during 2025, reinforcing persistent demand from fintech firms, neobanks, and institutions holding large amounts of unproductive USDT balances.
Introducing StableEarn.
Where capital moves and compounds.@Morpho, @Theo_Network, and @gauntlet_xyz are coming together to launch an institutional-grade Earn experience on Stable.
Starting with the launch of USDT vault on Morpho. pic.twitter.com/qZgE4aRlRH
— Stable (@Stable) May 26, 2026
StableEarn routes deposits through three Theo-managed products: thBILL, thGOLD, and thUSD. thBILL offers short-duration US Treasury exposure, and thGOLD generates yield from gold-denominated loans to established retailers. thUSD uses a delta-neutral carry strategy hedged with short gold futures traded on the CME.
Morpho provides the lending infrastructure, while Gauntlet curates risk parameters across the protocol, overseeing more than $1.4 billion in assets.
Theo, built by former traders from Optiver, IMC Trading, and institutional investment professionals from UBS and Polygon Ventures, works with Standard Chartered’s Libeara and Wellington Management. Unlike many DeFi yield products, StableEarn’s returns flow from regulated, physically backed collateral rather than token emissions.
1/ StableEarn is live.
The initial StableEarn vault is powered by @morpho and curated by @gauntlet_xyz, with yields facilitated by Theo’s RWA products, letting USDT depositors access institutional-grade returns directly on Stable. https://t.co/RVfnxblS0D pic.twitter.com/xlgGJZ8g0K
— Theo (@Theo_Network) May 26, 2026
Theo CIO Iggy Ioppe described StableEarn as a model for institutional-grade on-chain dollar yield tied to real-world financial markets while remaining fully USDT-native..
The timing also reflects broader momentum in tokenized finance. Data from rwa.xyz shows tokenized Treasury products held over $15 billion in distributed value across 82 assets as of May 27. StableEarn becomes the first native-chain yield vault designed specifically for USDT holders, removing the need for users to bridge assets to Ethereum for comparable returns.
Tether reported $1.04 billion in Q1 2026 net profit against nearly $192 billion in total assets, underscoring the scale of capital now flowing through the stablecoin economy.
StableEarn enters the same $15+ billion tokenized Treasury sector at a time when secondary liquidity across RWAs remains fragmented and structurally thin.
Market concentration is significant, with Circle, Ondo, Securitize, and Franklin Templeton Benji accounting for roughly 70% of total supply, according to rwa.xyz data. Holder participation beyond the largest issuers also remains limited. BlackRock’s BUIDL reportedly has 108 registered holders, while Franklin Templeton’s iBENJI counts just 26.
Tokenized US Treasuries crossed $15 billion this year. BlackRock, Fidelity, Janus Henderson, and Franklin Templeton are all live onchain.
By one measure, RWAs are working.
By the measure that actually matters, they aren't yet.
The asset is onchain. The liquidity isn't.For RWAs…
— Aes (@AesPoker) May 14, 2026
For a USDT-native chain still developing network depth, redemption efficiency and cross-protocol composability could remain slower than on more established liquidity hubs. USDT’s nearly $190 billion market cap now sits against a tokenized Treasury sector managing just over $15 billion in distributed value.
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