Leverage in the Financial Sector 3535
concern over broader contagion led to sizable declines in bank stocks, as refl ected by the declines in
the KBW bank indexes (as shown in fi gure A). On March10, Signature Bank, an institution supervised
by the FDIC with $110billion in assets at the end of 2022, continued experiencing stock price declines
and suffered a run, with depositors withdrawing 20percent of deposit balances.
4
Signature Bank was
closed on Sunday, March12, by the New York State Department of Financial Services, and the FDIC
was named receiver.
5
The speed and magnitude of the runs on uninsured deposits at SVB and Sig-
nature Bank generated broader concerns about the resilience of banks with a large concentration of
uninsured deposits and signifi cant declines in the fair value of fi xed-rate assets in a rising rate environ-
ment. The bank runs at SVB and Signature Bank contributed to a further deterioration of confi dence in
banks, amplifying the initial bank stresses. Other banks also saw notable deposit outfl ows, threatening
households’ and businesses’ ability to access accounts they routinely use to make payments. In con-
trast, the largest banks saw signifi cant deposit infl ows. On Sunday, March12, the Federal Reserve,
together with the FDIC and the U.S. Department of the Treasury, announced decisive actions to protect
households and businesses (see the box “The Federal Reserve’s Actions to Protect Bank Depositors
and Support the Flow of Credit to Households and Businesses”).
The runs on SVB and Signature Bank were of unprecedented speed compared with previous runs.
During the run on Washington Mutual in 2008—to date, the run that caused the largest failure of an
insured depository institution by infl ation-adjusted total assets—depositors withdrew about $17billion
over the course of eight business days, with the largest deposit withdrawal in one day reaching just
over 2percent of pre-run deposits.
6
By comparison, the highest one-day withdrawal rate was more than
20percent in the case of SVB and Signature Bank, at the time the second- and third-largest depository
institutions by infl ation-adjusted total assets, respectively, that failed due to a bank run (fi gure B).
7
At
SVB, withdrawals would have been even larger had regulators not closed the bank on the morning of
March10. FigureB also compares the speed of the runs on Washington Mutual, SVB, and Signature
Bank with the run on Continental Illinois, the fi fth-largest depository institution by infl ation-adjusted
total assets to fail due to a bank run. Continental Illinois sustained sizable withdrawals of uninsured
deposits for six consecutive days in May1984, with a peak one-day withdrawal rate of 7.8percent of
deposits, before a public assistance package was put in place.
8
The unprecedented speed of the run
on SVB was likely facilitated by widespread adoption among SVB’s tightly networked depositor base of
technologies enabling depositors to submit withdrawal requests electronically and to share messages
about the bank’s perceived problems via messaging apps and on social media. But the faster speed
of the run in the Continental Illinois case relative to Washington Mutual also points to the role of the
concentration of uninsured deposits.
In international markets, Credit Suisse came under renewed pressure. In recent years, Credit Suisse
had experienced a succession of risk-management, corporate-governance, and compliance failures.
And in 2022, it reported the largest after-tax loss since the 2007–09 fi nancial crisis and experienced
signifi cant deposit outfl ows in the last quarter of the year. During the week of March13, the fi rm pub-
lished its annual report, which was originally scheduled for publication the previous week, and its
4
See Federal Deposit Insurance Corporation (2023), FDIC’s Supervision of Signature Bank (Washington: FDIC, April), https://www.
fdic.gov/news/press-releases/2023/pr23033a.pdf.
5
See New York State Department of Financial Services (2023), “Superintendent Adrienne A. Harris Announces New York
Department of Financial Services Takes Possession of Signature Bank,” press release, March12, https://www.dfs.ny.gov/
reports_and_publications/press_releases/pr20230312.
6
See Office of Thrift Supervision (2008), “OTS Fact Sheet on Washington Mutual Bank,” September25, www.fcic.gov/documents/
view/905. The one-day deposit withdrawal rate is estimated using only consumer and small business deposits; see Declaration
of Thomas M. Blake to the U.S. Bankruptcy Court, District of Delaware, Chapter 11 Case No. 08-12229 (MFW) and Adversary Pro-
ceeding No. 09-50934 (MFW) (2009).
7
After the data close on April 21, 2023, First Republic Bank failed, making it the second-largest depository institution to fail due to
a bank run.
8
See Mark Carlson and Jonathan Rose (2019), “The incentives of Large Sophisticated Creditors to Run on a Too Big to Fail Finan-
cial Institution,” Journal of Financial Stability, vol. 41 (April), pp. 91
–104.
Box 3.1—continued
(continued)