A bank run that began with a small Californian regional bank has now escalated into a worldwide crisis. As a response to the failures of Silvergate, Silicon Valley Bank, and Signature, the Federal Reserve prepared a veritable bazooka of new funding for financial institutions and reversed its plans to contract the money supply. Switzerland is busy negotiating the merger of two of its largest banking institutions, UBS and Credit Suisse. This represents the biggest challenge to financial stability since the Great Financial Crisis in ‘08 and a sea change in the structure of US banking. Attention has rightly been focused on the prospect of further runs and the knock-on effects of Fed policy on banking institutions.