Rep. Brad Sherman, D-Calif., a senior member of the House Financial Services Committee, said he's considering a bill to shore up regulation and oversight of medium-size banks.

Panic withdrawals brought down a bank within two days, and many point to some venture capitalists, who urged companies to pull money out of the bank.

President Joe Biden said that deposits at U.S. banks are safe following swift action from his administration's bank regulators.

The FDIC named Greg Carmichael, who retired last year as CEO of Fifth Third Bancorp, to run a bridge bank that will hold Signature's deposits and most of its assets.

The San Francisco-based bank, whose stock came under pressure after the failure of Silicon Valley Bank, said the increased borrowing capacity strengthens and diversifies its funding. The bank's "capital and liquidity positions are very strong," executives said.

The Treasury Department issued a "systemic risk exception" allowing it to cover uninsured deposits at SVB and Signature Bank, which New York State closed on Sunday.