First Republic Bank’s stock has plunged at the opening bell in the US after it said depositors withdrew more than 100 billion dollars (about £80.7 billion) during last month’s crisis.
It has sparked fears it could be the third bank to fail after the collapse of Silicon Valley Bank and Signature Bank.
The San Francisco bank said late on Monday it was only able to staunch the bleeding after a group of large banks stepped in to save it by depositing 30 billion dollars (£24.2 billion) in uninsured deposits.
“With still a large level of uncertainty in outcomes and expected losses beyond the next year, we recommend investors sell shares as the outlook appears largely unclear,” Citi analyst Arren Cyganovich said in a note to clients.
Shares tumbled more than 28% when markets opened in the US.
Other regional banks were under pressure in what looks like a down day for markets, but the losses were modest early on.