After Standard & Poor's downgraded San Francisco-based First Republic Bank's credit rating on Monday,
competing banks' shares rose. S&P downgraded First Republic's credit rating to B+ from BB+ on Sunday.
S&P stated CreditWatch Negative continues. The failure of Silicon Valley Bank has forced investors to reassess other banks
with substantial uninsured deposit bases, causing the stock to fall 47% on Monday and 90% month-to-date.
Once the Wall Street Journal reported that JPMorgan CEO Jamie Dimon helped First Republic, the shares fell further.
JPMorgan advises First Republic on a capital raise, according to CNBC's David Faber.
Volatility halted First Republic shares several times.
The SPDR S&P Regional Banking ETF rose 1.2% Monday despite First Republic's fall.