Earlier quoted context omitted.
Self inflicted wounds this time, though. There is nothing wrong with a bank purchasing 80bln of MBS with their depositors money. The issue becomes when the fed suddenly raises rates faster than any time in their history while still failing to fight inflation (which is a result of having a stronger economy).
Not the Fed's fault. SVB's fault for going all-in on 10year duration MBS. If they had mixed in a good amount of shorter duration tbonds/tbills they would've been fine.
If you have a healthy mix of business and retail clients, payday is a wash. If it’s a lot of business customers; every payday is like a predictable mini bank run.
If you have a small number of large, correlated and communicating players, you have a huge bank run risk.