Zions Bancorporation, Western Alliance Bancorporation, Comerica, UMB Financial Corporation and Intrust Financial Corporation were all on the list, Moody’s revealed. The agency cited concerns over the lenders’ reliance on uninsured deposit funding and unrealized losses in their asset portfolios. “The review for downgrade reflects the extremely volatile funding conditions for some US banks exposed to the risk of uninsured deposit outflows,” it stated. Moody’s also slashed the debt ratings of collapsed New York-based Signature Bank deep into junk territory, withdrawing future ratings for the insolvent lender. The downgrades come while US bank stocks have continued to plummet despite the government’s measures to support lenders and prevent more bank runs. First Republic Bank has led the sell-off, with its share price nosediving more than 60% on Monday, forcing a brief halt in trading due to volatility. Western Alliance Bancorp lost over 47% while Zions Bancorp declined by about 26%. Dallas-based Comerica dropped 28% and UMB lost more than 15%.
The turmoil was triggered by the collapse of major US tech lender SVB on Friday, after customers rushed to withdraw their deposits, which led to its shares crashing and forced the Federal Deposit Insurance Corporation to shut the bank down. SVB became the largest US financial institution to collapse since the 2008 financial crisis.