Bowman, Initial Findings from Independent Review of Silicon Valley Bank

Bowman's Mansion House speech delivers the initial findings of the Starling Advisory Group's independent review into SVB, and it is a supervision document end to end: no rate signal, no balance sheet signal, nothing for the front end or the curve. The substance is the supervisory failure chain: staff knew or should have known of the vulnerabilities from March 2022 and did not act decisively, driven by a culture of risk aversion and muddled decision rights. A pointed finding knocks down the popular "social media caused the run" story. New process changes are announced: monthly examiner escalation reports direct to supervision heads.

What’s new: Nothing material for rates. The genuinely new items are supervisory, not monetary: the formal independent verdict that staff "knew, or should have known" by March 2022; the explicit exoneration of the 2018 tailoring mandate and of the former Vice Chair as causes of supervisory delay; the culture-of-risk-aversion finding; and the commissioned Charles River finding that social media did not trigger or accelerate the SVB run. The market had the broad narrative since the 2023 postmortems, but these are the first independent, attributed confirmations.

KEY FINDINGS

• Staff knew or should have known of SVB's vulnerabilities as early as March 2022 but took no prompt, decisive action to force a reduction in interest rate risk or deposit concentration. Confirms the failure was supervisory execution, not rule gaps, so the reform path is process and escalation rather than new capital or liquidity rules: neutral for bank funding costs and for rates.
• The delays were explicitly not caused by the EGRRCPA tailoring mandate or by any directive from the former Vice Chair for Supervision to soften supervision. Takes the political-regime explanation off the table and points to internal culture and decision rights as the fix, a narrow supervisory story with no macro transmission.
• A commissioned Charles River analysis concluded social media did not trigger the SVB run and did not accelerate it, with 96 percent of chatter appearing after failure was inevitable. Kills the deposit-flight-via-social-media narrative that some had used to argue for tougher liquidity or deposit rules: marginally bank-positive by removing a regulatory tail risk.
• Going forward, examination teams will submit monthly reports directly to heads of supervision and Reserve Banks flagging issues where an examiner was uncertain. A structural escalation channel that implies more, and earlier, supervisory intervention across banks: mildly negative for supervised bank equity sentiment, no rates read.
• SVB's deposit basis was 94 percent uninsured and concentrated in VC-backed technology companies, with real but unrealized securities losses exceeding capital. Restates the known vulnerability set; no new pricing content, but underscores concentration risk as the supervisory focus.

FROM THE DOCUMENT

Third, despite what it knew or should have known, supervisory staff did not take prompt and decisive action to encourage or require SVB to reduce its interest rate risk or concentration of vulnerabilities.

Fourth, the delays in supervisory action were not caused by the regulatory tailoring mandate in the Economic Growth, Regulatory Relief, and Consumer Protection Act of 2018 or by any directive or suggestion from the former Vice Chair for Supervision to reduce the intensity of supervision.

Fifth, one significant factor contributing to supervisory inaction was a long-standing culture of risk aversion.

In fact, Charles River Associates analyzed this claim at Starling's request and concluded that social media did not trigger the bank run at SVB, and there was no evidence that social media accelerated the run.