Western Alliance and First Republic clobbered as regional bank jitters persist despite Fed backstops

Trading in shares of First Republic Bank and Western Alliance Bancorp ended sharply lower in a tough day of trading for regional banks as fears over bank solvency persisted following the failures of Silicon Valley Bank, Signature Bank and Silvergate Capital.

Stocks were periodically halted or paused for trading amid the bank stock bloodbath, which saw many suffering percentage declines well into the double digits. Typically, bank stocks are stable compared with sectors such as technology, with daily moves above 5% being relatively…