What happened
On 30 September 2026 the Federal Reserve finalised two rules governing how it runs the annual bank stress test. The stated aim is more transparency and public accountability in the process, and less year to year volatility in the capital requirements that come out of it.
The first rule requires the board to let the public comment on the annual stress test scenarios and on any material changes to the models behind them. Banks will be tested against two global market shock components each year, and each firm's result will be measured using the shock that produces the larger loss. The second rule requires the Fed to calculate a bank's stress capital buffer as the average of the last two annual tests. That change takes effect in 2028.
Alongside the rules, the Fed requested comment on a revision to the model it uses to measure noninterest income, so that differences in the way banks generate fee income are better captured. Feedback is due 60 days after publication in the Federal Register. The Fed estimates the changes together could halve the yearly volatility banks see in stress test mandated capital requirements.
Vice chair for supervision Michelle Bowman said the stress test is an essential component of the regulatory capital framework, and that the changes preserve its resilience by making it transparent, granular and risk sensitive. The board voted 6 to 1 on the first rule. Governor Michael Barr dissented, warning that over time the rule will reduce the dynamism, rigor, conservatism and credibility of the stress test and so undermine financial stability. He added that disclosing models and inviting comment will make the tests less responsive to emerging risks, and that calcified models will let banks optimise their balance sheets to the test rather than to underlying risk.
Banking trade groups welcomed the outcome, saying that opening the process to public comment, as the Administrative Procedure Act requires, is driving better policy. A 2024 attempt at the same reforms drew a lawsuit from those groups.
Why this is a GRC story
This is a governance argument about the supervisor. Public comment on scenarios and models is transparency applied to the regulator's own methodology, which is a legitimate governance question. The dissent sets out the cost of that trade honestly, because a model that is consulted on and then frozen can lose responsiveness and invite optimisation against the test.
Predictability is a real control benefit. Averaging two tests and stabilising requirements makes capital planning cleaner and reduces cliff effects from a single harsh scenario. The trade off is that a genuine deterioration can be blended away for a year.
The comment file is where the substance gets settled. The noninterest income model touches how fee heavy banks are assessed, and that is where mid sized institutions will feel the practical difference.
What to watch
Watch the Federal Register publication and the 60 day window on the noninterest income model. That revision is the part most likely to change a specific bank's numbers.
Watch how banks manage their buffers in the run up to the 2028 averaging rule, and whether the dissent becomes a basis for renewed litigation. Transparency rules that satisfy one administration on process grounds can still be challenged on their consequences.
Attribution: Analysis based on Banking Dive's reporting and the Federal Reserve's press release and statements. This article is original commentary, not a repost of the source material.