Silicon Valley Bank collapse: a small banking crisis read as a crash signal

What happened during the Silicon Valley Bank collapse?

Customers withdrew $42 billion by the close of business on 9 March 2023, and about $100 billion more was expected to leave on 10 March. That morning the California Department of Financial Protection and Innovation closed the bank and placed it in FDIC receivership. Two days later, on 12 March, regulators announced emergency measures. Each date in the figure below marks a decision point that later tests refer to.

The FDIC created a temporary bank, the Deposit Insurance National Bank of Santa Clara, to hold insured deposits, and promised insured depositors full access by Monday morning, 13 March. Uninsured depositors received an advance dividend and a receivership certificate for the rest of their funds. The sequence took 4 days from the first heavy withdrawals to reopening.

Why did Silicon Valley Bank customers withdraw so fast?

Balance sheets explain the speed. At the end of 2022 the bank held about $209 billion in assets and $175.4 billion in deposits, and about 89% of deposit liabilities exceeded the $250,000 FDIC limit. A depositor with an uninsured balance has a strong reason to leave first, since insurance offers no cover for the amount above the cap.

Technology added to the speed, since a customer could move money from a phone. The result was a withdrawal of $42 billion in one day, nearly a quarter of the deposits. The page on what a bank run is explains why such copying behaviour becomes rational.

Was the Silicon Valley Bank collapse a small banking crisis?

By ranking, the bank was the 16th-largest in the United States, so it was large enough to matter and far from the top. A failure of that size would not threaten the whole system if it stayed alone. The signal came from the combination of its size, its speed, and the fact that other banks resembled it. Rank alone therefore tells you little, and the structure of the bank tells you more.

That is why the label small needs a second word: small, and similar. Analysts ask which other banks hold uninsured deposits, which hold large unrealised losses, and which depend on a narrow customer base. On 13 March the regional banks became that list, and their shares moved.

How did authorities stop the Silicon Valley Bank collapse from spreading?

On 12 March 2023 the Treasury approved a systemic risk exception, which let the FDIC protect all depositors of Silicon Valley Bank. Silicon Valley Bridge Bank, N.A. reopened on 13 March. The Federal Reserve also created the Bank Term Funding Program to support liquidity at other banks that faced pressure.

Speed of response is part of the signal. Authorities acted over a weekend, before the Monday market open, which signalled that they treated the event as a system question. The same weekend, New York regulators closed Signature Bank on 12 March, a second failure that confirmed the pressure was spreading.

What did the stock market show after the Silicon Valley Bank collapse?

US bank market capitalisation lost a combined $100 billion over two days, according to the Wikipedia account of the case. On 13 March, regional bank shares, including First Republic, plummeted. Fear of contagion moved from one bank to the whole group.

A fall in a bank sector is an early crash signal, because banks fund the rest of the market. The signal needs confirmation from other gauges before anyone calls a stock market crash. Broad indices, credit spreads, and funding costs tell you whether fear stays in one sector or spreads to all assets.

Which 4 tests tell whether a bank failure signals a stock market crash?

Test 1 asks about speed: how much left in how few days. Test 2 asks about similarity: how many other banks share the same weakness. Test 3 asks about contagion: whether bank shares outside the failed bank fall together. Test 4 asks about response: whether authorities acted before the next market open. Write the answer to each test in one sentence, so that the rating stays comparable from one event to the next.

Score each test as red or green and write the result with the date. Four reds point to a spreading event, and 1 red on its own points to a contained one. Silicon Valley Bank scored red on speed and response, and similarity decided how far fear travelled. Repeat the exercise for every future headline.

What should a company do after the Silicon Valley Bank collapse?

List your balances by bank and mark every amount above the insured limit. Set a ceiling per counterparty, keep a second banking relationship ready, and know how fast you can move funds. The EQOS Asia simulator lets you stress these balances against a sudden withdrawal in your own scenario. Review the list every quarter, because balances and counterparties change.

For finance teams in Singapore, ASEAN, and Hong Kong, the EQOS Asia pricing page lists diagnostics that map bank and market exposure in one view. This page is general information, not investment advice. The pillar on the stock market crash links this case to causes, signals, and history.

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About the author

Stéphane Jambu

President, EQOS Forecast Asia

Stéphane Jambu leads EQOS Forecast Asia and works as a consultant in e-commerce, search visibility, and AI. LinkedIn profile