Ethena Labs just wrote a $250 million check for a tokenized debt product that most crypto natives have never heard of. The allocation goes to Securitize’s STAC fund, which gives onchain investors access to AAA-rated collateralized loan obligations, the kind of institutional-grade structured credit that traditionally lives behind locked doors on Wall Street.

The protocol also invested $250 million in Centrifuge’s tokenized Janus Henderson Anemoy AAA CLO Fund, known as JAAA, which launched in June 2025. That puts Ethena’s total commitment to tokenized structured credit at half a billion dollars.

What STAC actually is

STAC is one of Securitize’s in-house offerings that provides onchain access to institutional-grade, floating-rate structured credit. It takes bundles of corporate loans that received the highest possible credit rating, tokenizes them, and lets investors buy exposure through blockchain rails instead of traditional brokerage accounts.

The fund commenced operations on October 29, 2025. As of late May 2026, STAC had accumulated approximately $102 million in assets under management and was delivering a 30-day yield of around 4.5%.

CLOs themselves are not new. They’re pools of leveraged loans sliced into tranches by risk level. The AAA tranche sits at the top of the capital structure, meaning it gets paid first and absorbs losses last.

The Ethena-Securitize pipeline

In March 2025, the two firms announced the joint development of the Converge blockchain, an institutional-focused chain designed for compliant tokenized asset settlements.

Then in June 2025, they enabled 24/7 atomic swaps between Ethena’s USDtb stablecoin and BlackRock’s tokenized BUIDL fund.

What this means for investors

For DeFi investors, this matters because it expands the universe of yield-generating options beyond the usual suspects of lending protocols and liquidity pools. AAA CLO exposure through tokenized vehicles like STAC offers a fundamentally different risk profile than most DeFi yields, which tend to be correlated with crypto market volatility.

For traditional fixed-income investors, the 24/7 settlement and atomic swap capabilities remove friction that has historically kept institutional capital on the sidelines of tokenized markets. The ability to move seamlessly between USDtb and products like BUIDL or STAC without waiting for T+1 settlement windows is a genuine operational improvement.

The risk side of the equation deserves attention too. AAA CLO tranches historically perform well, but the tokenization layer introduces its own set of considerations: smart contract risk, regulatory uncertainty around onchain securities, and the relative immaturity of redemption mechanisms during market stress.