Silicon Valley Bank's investments in Treasury's did not appear to be risky yet these investments were in long term Treasury's that lost value when interest rates were increased by the US Federal Reserve. The market value of its assets declined leading to startups and other tech companies affected by the downturn to withdraw assets all at one time from the bank. The withdrawals amounted to about $42 billion last week leading to its collapse from running out of cash to pay depositors withdrawing their money. Unlike the bad loan problems of banks in 2008, a whole combination of such factors led to its collapse. With the collapse the FDIC will issue receivership certificates for the $155.1 billion in deposits that were large and did not qualify for FDIC insurance.