On May 13, 2026, Moody's assigned its highest money market fund assessment — Aaa-mf — to two tokenized products on the same day. BlackRock's BUIDL ($2.5 billion AUM) and Fidelity International's FILQ, which launched that morning, both cleared the credit threshold that has kept many institutional mandates on the sidelines.
For investment committees with minimum credit quality requirements, that barrier is now removed. But the two funds that share that designation operate on fundamentally different infrastructure. BUIDL spans eight blockchain networks connected by a third-party bridge with a documented $320 million exploit history. FILQ operates on a single permissioned Ethereum environment with no bridge dependencies. The Aaa-mf tells you both funds are creditworthy. It does not tell you which one settles in 12.8 minutes versus under a second, or which one introduces bridge and validator risk the assessment was not designed to evaluate. BRN's new report provides the framework for the rest of due diligence.
Key takeaways from the report
The Moody's Aaa-mf framework assesses credit quality, liquidity, legal structure, and fund-level technology controls — including smart contract governance and custody arrangements. By its own stated design, it does not assess chain-level resilience: settlement finality, validator concentration, network uptime history, or cross-chain bridge dependencies. These are exogenous infrastructure risks rather than risks mitigated at the fund level. The allocator is responsible for covering them.
The tokenized Treasury market has grown from $1 billion to more than $15 billion AUM in two years, per rwa.xyz data, with Ethereum ($7.8 billion), BNB Chain ($3.1 billion), and Solana ($904.1 million) hosting the largest concentrations. At this stage of the market, "tokenized MMF exposure" is not a homogeneous category. It is a spectrum of operational risk profiles under the same name.
The report covers four leading products — BUIDL, BENJI, FILQ, and OUSG — and shows how their infrastructure choices produce materially different execution profiles despite sharing the same credit assessment. It also introduces a three-question due diligence framework designed to be portable: applicable to any tokenized fund, not only those assessed here.
