What did not happen: 100% of all businesses and 100% of all wealthy persons are withdrawing 100% of their accounts.

What has happened: Banks with teensy weensy reserves publicly shrieked that their teensy weensy reserves might not be sufficient and that triggered a bank run of about $600b which because reserves are so teensy weensy, actually threatens a domino effect.

Silicon Valley Bank Collapse Suggests 0% Reserve Requirement Won’t Halt Bank Runs

In May 2002, the reserve requirement was 10%, according to Economic Policy Review. . . .

In November 2022, the Fed reiterated its reserve requirements were still 0% with a twist. That is when the Fed noted “technical details related to reserve requirements for depository institutions” would go into effect in January 2023.

Banks have exceeded that reserve requirement. For example, at the end of December,

  • Bank of America had 2% of its $1.93 trillion in deposits in cash;
  • JP Morgan held 2% of its $2.3 trillion in deposits in cash and
  • Silicon Valley Bank had 5% of its $175 billion in deposits in cash.