Regional banks seek financing amid credit rating concerns and market volatility.

First Republic Bank had spoken to at least one private equity firm about raising capital before securing financing from JPMorgan Chase & Co and receiving support from US authorities. The private equity deal talks ended once First Republic announced its credit line with JPMorgan. The US Federal Reserve and other regulators announced emergency measures to shore up confidence in the banking system, which took away some of the urgency to do a deal. Shares of First Republic slumped more than 60% on Monday on fears of bank contagion following the collapse of SVB Financial Group and Signature Bank.