Key points

  • The review says SVB combined large unrealized securities losses, a 94% uninsured deposit base and weak emergency-borrowing readiness.
  • Supervisors knew or should have known about major vulnerabilities by March 2022 but did not require prompt corrective action.
  • The Fed is adding monthly escalation reports and refocusing supervision on material threats to banks and financial stability.

A new independent review commissioned by the Federal Reserve says supervisors identified major vulnerabilities at Silicon Valley Bank well before its March 2023 collapse but failed to press for timely corrections. Federal Reserve Vice Chair for Supervision Michelle Bowman presented the initial findings on September 18, saying the episode exposed weaknesses both at the bank and within the central bank's supervisory process. The review was conducted by Starling Advisory Group and is described as the first in a series.

Three vulnerabilities converged

The review identified a combination of risks rather than a single cause. SVB held unrealized losses on securities that exceeded its capital, relied on a deposit base that was 94% uninsured and heavily concentrated among venture-capital-backed technology companies, and was not operationally ready to borrow from the Federal Reserve's discount window when liquidity pressure intensified. Those weaknesses made the bank unusually exposed to rising interest rates and rapid withdrawals.

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Warnings did not produce decisive action

According to Bowman's account, supervisory staff knew or should have known about the vulnerabilities as early as March 2022. The review found that examiners did not act quickly enough to require reductions in interest-rate risk or concentrated funding exposure. It attributed part of that delay to a culture in which staff considered inaction personally safer than taking a step that might later be judged incorrect. Unclear decision rights also left teams uncertain about who could authorize or support stronger measures.

Findings challenge parts of the earlier account

The initial conclusions differ from elements of the Fed's 2023 internal postmortem led by former supervision chief Michael Barr. Bowman said the delays were not caused by the 2018 law that tailored regulation for many banks or by instructions from earlier Fed leadership to reduce scrutiny. Reuters reported that Senator Elizabeth Warren disputed the new framing and warned that it could support deregulation. The disagreement leaves the causes and policy lessons of SVB's failure politically contested.

Social media receives a narrower role

The review also questioned the common view that social media triggered or accelerated the run. Bowman said an analysis prepared for Starling found that 96% of social-media discussion about the bank appeared only after failure had become inevitable. That does not eliminate the importance of fast digital withdrawals, but it shifts attention toward the bank's balance sheet, deposit concentration, liquidity planning and the supervisors' response before the run began.

The Fed begins changing escalation rules

The central bank has already introduced supervisory operating principles that prioritize material threats to a bank's condition and to U.S. financial stability. Examiners can use observations alongside formal matters requiring attention and enforcement actions, allowing responses to be calibrated to the seriousness of a problem. Examination teams will also send monthly reports to senior supervision officials and Reserve Bank leaders when staff are uncertain whether the threshold for action has been met.

What remains unresolved

The findings are preliminary, and Bowman noted that her remarks represented her own views rather than a formal position of the full Federal Reserve Board. Further reports could add evidence or refine the conclusions. The practical test will be whether new escalation channels produce earlier intervention without discouraging careful judgment, and whether regulators translate the review into durable standards for liquidity, interest-rate risk and concentrated uninsured deposits at regional banks.

Sources

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