Square Mile’s Andrew Johnston comments on Silicon Valley Bank

by | Mar 14, 2023

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Written by Andrew Johnston, Investment Director, Square Mile Investment Services

The situation with Silicon Valley Bank (SVB) has unravelled at an incredibly fast pace. Following a sharp drop in deposits, the bank was forced to sell assets to cover the short-fall, these were mostly high-quality US mortgage-backed securities.

However, these assets have fallen in value as interest rates have risen. The bank therefore crystallised a loss it needed to repair through a sale of shares. The bank’s depositors are mostly technology related companies who proved fickle on this hint of weakness.

Therefore, with encouragement from the venture capitalist community, they started moving their deposits en masse elsewhere. What ensued was a classic bank run and the demise of SVB in a matter of days. 


In order to limit contagion affects, authorities on both sides of the pond have moved quickly. In the US the Treasury, Federal Reserve (Fed) and FDIC (Federal Deposit Insurance Corporation) have underwritten all depositors for SVB as well as New York Signature Bank, a bank with strong ties to the crypto-community that has also closed.

It is assumed, but not yet fully clarified, that uninsured depositors will be paid out of the $128bn Deposit Insurance Fund for anything both banks’ assets can’t cover. The Fed has also announced they will provide liquidity for all banks seeing withdrawals. In the UK, HSBC has bought SVB’s regional arm, a solution that avoids any need for government involvement. 

Whether this will be enough to calm markets is yet to be seen and they remain, especially banking shares, under pressure. We take some comfort from the fact that the fall-out seems fairly contained. Most other banks do not appear to carry the same level of asset-liability mismatch and the authorities have acted swiftly. 


Bad risk management has undoubtedly played its part in this instance. Nevertheless, events such as this are also examples of the unforeseen consequences that rapidly tightening monetary conditions can cause. This may therefore give central banks something more to consider, especially the pace of the current interest rate hiking cycle. 

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