The London-headquartered lender posted a pretax profit of $3.15 billion for the three months ended Sept. 30, down from $5.4 billion a year ago, compared with the $2.45 billion average of analyst estimates compiled by the bank.

The results included an impairment of $2.4 billion, following reclassification of the bank's retail operations in France to be held for sale.

(Reporting by Anshuman Daga and Lawrence White; Editing by Kenneth Maxwell and Clarence Fernandez)