BlackRock embraces stablecoins
BlackRock integrates Ethena USDe and USDtb into Aladdin for institutional crypto access
Key Points
Post-trading-hours liquidity: Eligible BUIDL holders will be able to convert BUIDL into stablecoins such as USDC and USDtb after normal trading hours, enabling off-hours liquidity and settlement workflows within BlackRock's Aladdin.
USDtb reserve composition: USDtb is backed by reserves with over 90% held in BlackRock’s BUIDL fund, underscoring a deep collateral linkage between the stablecoin and the tokenized treasury.
BUIDL fund scale: Ethena's $200 million liquidity infusion helped push BUIDL’s assets under management past $1 billion, illustrating the rapid scale and impact of Ethena's tokenized-treasury ecosystem.
USDe architecture specifics: USDe is a synthetic dollar that yields via delta-neutral crypto strategies, including staked Ethereum and derivatives positions, distinguishing it from fiat-backed stablecoins.
Cross-chain expansion: Ethena is broadening its multi-chain footprint beyond Ethereum, with initiatives like USDi and suiUSDe on the Sui blockchain, expanding access and interoperability across networks.
BlackRock has added Ethena's synthetic dollar USDe to its Aladdin platform, giving institutional managers overseeing up to $25 trillion in assets direct access to on-chain dollar products, according to The Defiant. A $100 million liquidity facility, managed by Securitize, will let eligible holders swap BlackRock's tokenized BUIDL fund for stablecoins like USDC and USDtb around the clock — even outside normal trading hours, FinanceFeeds reported.
Ethena's governance token ENA jumped 12% within hours of the announcement, trading near $0.081. The move marks the deepest integration yet between traditional finance infrastructure and the fast-growing world of tokenized assets.
How the BUIDL Liquidity Facility Actually Works
Eligible BUIDL holders will be able to convert their fund shares into stablecoins — including USDC and USDtb — after normal market hours. That matters because traditional money-market funds only settle during banking hours, leaving investors locked out overnight. The $100 million facility bridges that gap, enabling 24/7 settlement workflows inside Aladdin's existing systems, Crypto Briefing reported.
The facility builds on infrastructure tested in June 2025, when Ethena and Securitize first enabled atomic swaps between BUIDL and USDtb. Ethena's own $200 million allocation helped push BUIDL's assets under management past $1 billion earlier that year. Today, BUIDL holds roughly $3.06 billion in AUM, according to Crypto Times.
USDe and USDtb: Two Very Different Stablecoins
USDe is not backed by dollars in a bank. Instead, it holds staked Ethereum and pairs that with short futures positions — a delta-neutral strategy that hedges price swings and captures yield. This approach sets it apart from fiat-backed tokens like USDC. USDe currently has a market cap of $4.45 billion, The Defiant noted.
USDtb takes a more conservative route. Over 90% of its reserves sit in BlackRock's BUIDL fund — essentially tokenized U.S. Treasuries. That tight collateral link between USDtb and BUIDL is what made the Aladdin integration possible. Skeptics have compared USDe's synthetic model to Terra's UST collapse in 2022, but analysts stress USDe is fully collateralized by hedged assets, unlike UST's uncollateralized design.
BlackRock and Ethena's Step-by-Step Partnership Timeline
The relationship started in March 2024, when BlackRock launched BUIDL on Ethereum. Ethena debuted USDtb in December 2024, backed mostly by BUIDL shares. By March 2025, BUIDL crossed $1 billion in AUM — fueled largely by Ethena's $200 million stake, according to TipRanks. The June 2026 Aladdin integration is the latest and largest step in that progression.
Guy Young, Ethena's founder, said: "The next phase of adoption will depend on infrastructure that enables traditional institutions to access onchain products through familiar systems." Robert Mitchnick, BlackRock's head of digital assets, called the liquidity facility a source of "seamless interoperability" — a key advantage of tokenizing such instruments.
Regulatory Risks and What Comes Next
Not everyone is cheering. Senator Elizabeth Warren warned in May 2026 that the GENIUS Act — the 2025 federal stablecoin law — contains a "loophole" that lets large firms integrate stablecoins with minimal oversight. In Europe, Germany's financial regulator BaFin ordered Ethena to wind down local operations in April 2025 over MiCA compliance concerns, Crypto Briefing reported.
Securitize, which manages the $100 million facility, is set to begin trading on the NYSE under the ticker $SECZ on July 2, 2026 — giving public markets a direct window into this infrastructure. Analysts at Markets Media called the deal "the starting gun for a new financial era," noting BlackRock is now "monetizing the reserve infrastructure of the digital dollar itself." Multi-chain expansion to Sui — with products suiUSDe and USDi already live — hints that Aptos and Solana could be next, TipRanks noted.
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