The world's largest asset manager just told regulators their proposed cap would kneecap the very products Wall Street is betting on.
The Summary
- BlackRock filed a comment letter opposing the OCC's proposed 20% cap on tokenized reserve assets, a limit that would directly constrain its BUIDL tokenized Treasury fund
- The GENIUS Act, set to take effect in 2027, requires stablecoin issuers to back reserves with high-quality liquid assets and face bank-level regulatory oversight
- BlackRock wants broader eligible asset categories beyond the OCC's narrow proposal, signaling where TradFi sees the real revenue in tokenized finance
- This is Wall Street's clearest signal yet that tokenized Treasuries are infrastructure, not experiment
The Signal
BlackRock's opposition to the OCC's proposed 20% tokenization cap isn't about philosophy. It's about product viability. The firm manages $11 trillion. Its BUIDL fund, launched in 2024, tokenizes Treasury bills on-chain and lets stablecoin issuers use those tokens as reserves. A 20% cap means stablecoin issuers could only hold one-fifth of their backing in products like BUIDL. That kills the business model before it scales.
The timing matters. The GENIUS Act, signed into law earlier this year, imposes bank-level capital requirements and reserve standards on stablecoin issuers starting in 2027. The OCC and FDIC are drafting implementation rules now. Public comment periods close soon. This is the window where lobbyists earn their keep.
"The OCC's narrow asset eligibility proposal would limit the very innovation the GENIUS Act was designed to enable."
BlackRock isn't just asking for the cap to be lifted. It wants the OCC to expand what counts as eligible reserve assets. Right now, the proposal focuses on cash and short-duration Treasuries. BlackRock wants:
- Tokenized repo agreements
- Broader Treasury maturities
- Other tokenized high-grade securities
The GENIUS Act was sold as a way to secure dollar dominance through regulated stablecoins. The logic: if the U.S. makes compliant stablecoins easier to issue than offshore alternatives, dollar-backed tokens become the global standard. But if reserve requirements are so restrictive that only a handful of issuers can comply, or if those issuers can't earn yield on reserves through tokenized products, the economics don't work.
Here's the tell: BlackRock doesn't file comment letters on losing bets. The firm is betting that tokenized Treasuries become the reserve layer for the stablecoin economy. A cap at 20% means that layer stays small. No cap, or a much higher one, means BUIDL and products like it become plumbing.
"This is the first time a top-three asset manager has explicitly lobbied for regulatory treatment that assumes on-chain assets are equivalent to traditional securities."
The FDIC has its own implementation proposal, and early analysis suggests it's slightly more permissive than the OCC's. If BlackRock gets traction with one regulator and not the other, you'll see forum shopping. Issuers will structure under whichever charter lets them hold more tokenized reserves. That's not a bug for BlackRock. It's the goal.
The subtext: Wall Street doesn't want to own crypto. It wants to own the infrastructure that makes crypto useful to institutions. Tokenized Treasuries do that. They let issuers hold reserves on-chain, move them 24/7, and still meet regulatory requirements. If the OCC caps that at 20%, the infrastructure doesn't scale. If it doesn't cap it, BlackRock just turned blockchain into the back office for the dollar.
The Implication
Watch how the OCC responds. If it adjusts the cap or drops it entirely, that's confirmation that tokenized Treasuries are now a protected asset class. If it holds firm, BlackRock and peers will route issuers toward FDIC charters or push Congress to override the rule. Either way, the friction point is clear: regulators want control, asset managers want revenue, and stablecoin issuers need yield to compete. One of those groups is about to lose.
For builders, this is a signal to treat tokenized Treasuries as durable primitives, not beta products. If BlackRock is willing to fight for regulatory preferential treatment, it's because the revenue model is real.