The UK stock market declined following concerns over US regional banks Western Alliance and Zions Bank facing loan issues, sparking fears of broader banking sector problems and causing global market declines, though some US bank shares rebounded and investors sought safe havens like gold amid heightened volatility.
US federal and state officials are investigating the possibility of market manipulation behind the recent big moves in banking share prices, as short sellers raked in $378.9 million in paper profits on Thursday alone from betting against certain regional banks. The White House has vowed to monitor "short-selling pressures on healthy banks," while the SEC has warned it will prosecute any form of misconduct. The increased short-selling activity has triggered some calls for a temporary ban, but an SEC official said the agency was "not currently contemplating" such a move.
Banking shares in London and Europe fell after the emergency rescue of Credit Suisse by UBS failed to calm markets. Credit Suisse shares plunged 63% while UBS was down 12%. The rescue deal saw holders of $17bn of Credit Suisse’s bonds wiped out, spooking investors over concerns of a potential slump in the value of AT1 bonds at other institutions. Central banks took coordinated action on Sunday night to try to shore up confidence by agreeing measures to ensure banks in Canada, Britain, Japan, Switzerland and the eurozone would have the dollars needed to operate.