LONDON, Dec 4 (Reuters) - HSBC Holdings said itintends to defend itself against European Union antitrustregulators who have opened proceedings against it and otherbanks in an investigation against alleged interest rate rigging.
"We intend to defend ourselves vigorously," a spokesman forHSBC said.
EU antitrust regulators fined six financial institutions arecord total of 1.71 billion euros ($2.3 billion) on Wednesdayfor rigging financial benchmarks.