Starling review tests earlier findings
Starling Trust Science, the external reviewer examining Silicon Valley Bank's (SVB) 2023 failure, released a preliminary report on September 21, 2026. The report primarily evaluates the conclusions of three earlier government investigations rather than presenting a wholly new account of the collapse.
Those investigations were led by Michael Barr, then the Federal Reserve's vice chair for supervision; the Federal Reserve's Office of Inspector General; and the U.S. Government Accountability Office. Starling said most of the earlier findings are supported by the available evidence, but reached different conclusions about the role of social-media activity and changes in regulatory policy.
The distinction matters for bank supervisors because SVB's failure cannot simply be attributed to online discussion or the speed of mobile banking. The channel that triggers deposit outflows, the way information spreads and the mechanism used to move funds all affect liquidity stress testing, run surveillance and the design of digital-bank oversight.
Private messages may have preceded public discussion
Starling cited an analysis by Charles River Associates (CRA) showing that most online discussion about SVB's financial distress emerged after the bank was already close to failure. The available evidence does not establish a clear sequence or causal link between public social-media activity and the rapid withdrawal of deposits.
The report said depositors were more likely to have exchanged information through private channels such as text messages and email. SVB had already disclosed several signs of stress, including the failure of a capital-raising plan and the sale of securities that had originally been intended to be held to maturity. Once market participants became aware of those developments, private communications and mobile-banking platforms may have accelerated the transfer of funds.
Digital channels may have sped up the movement of information and money, Starling said, but they did not create the financial condition facing depositors. Social media and digital banking therefore appear more relevant as tools for transmitting and executing pressure than as the starting point for the bank's balance-sheet problems.
Large uninsured depositors drove the withdrawals
Earlier research has also offered differing views on whether social media accelerated the banking turmoil in 2023. A working paper by researchers at Yale University and the Federal Reserve Bank of Chicago concluded that runs at SVB and other banks were driven mainly by simultaneous withdrawals from a group of large uninsured depositors, rather than by large numbers of small retail customers reacting to posts on Twitter.
Starling said regulatory discussions should therefore avoid treating “social-media risk” as a single category. Policymakers need to distinguish how concern develops, how information is distributed, how private coordination differs from public amplification, and how technology platforms actually execute withdrawals. Separating those stages would help supervisors determine whether a channel triggered, accelerated or merely widened a bank run.
The preliminary report said Barr's review did not draw these distinctions in sufficient detail. Simply tracking the volume of discussion on public platforms may not accurately capture how quickly uninsured depositors coordinate withdrawals through private networks.
Did higher thresholds weaken supervision?
The report also challenges how changes in regulatory policy have been linked to supervisory failures at the Federal Reserve. Barr's review identified the 2018 Economic Growth, Regulatory Relief, and Consumer Protection Act as an important factor. The law allowed regulators to raise the asset threshold for banks subject to enhanced supervision from $50 billion to $250 billion. Barr's report argued that the change reduced the intensity of scrutiny facing SVB and delayed attention to its risks.
The Federal Reserve's initial investigation also referred to a shift in supervisory preferences. The change was widely understood as referring to top-down supervisory guidance during the tenure of former Vice Chair for Supervision Randal Quarles, who served as the Fed's senior supervision official from October 2017 to October 2021.
Several former Federal Reserve supervisors interviewed by Starling disputed that interpretation. Some had been directly involved in Barr's review. One unnamed former supervisor said the Fed should not have included references to changes in regulatory policy and supervisory orientation in the final report, reducing the issue to a simple conclusion: “The bank made mistakes, and we did not find them. That's it.”
The disagreement leaves two separate questions in the assessment of responsibility for SVB's failure. One concerns the bank's own management of interest-rate, liquidity and balance-sheet risks. The other asks whether regulatory thresholds and changes in supervisory methods caused officials to miss warning signs. Starling has not yet assigned a final weight to either explanation.
Next report will include Barr and San Francisco Fed views
The document is the first of three fact-finding reports Starling has committed to publish. The next report will include Michael Barr's response and the results of discussions with supervisors at the Federal Reserve Bank of San Francisco, which was directly responsible for supervising SVB before its collapse.
For now, the report confirms several established facts: SVB came under visible pressure after its capital-raising effort and securities sale; depositors used digital channels to move funds more quickly; and clear evidence that public social media was the critical trigger remains lacking. The remaining supervisory questions concern why internal risk signals were not converted into action sooner and how private communications and mobile-banking channels should be incorporated into future bank-run monitoring.