U.K. banks were among the heaviest fallers. Barclays PLC was down 6.2% at 144 pence, Lloyds Banking Group PLC fell 5.7% to 28 pence, and Royal Bank of Scotland Group PLC was down 3.7% at 21 pence.

In France, Société Générale SA, which lost over 12% Thursday, was down 2% at €20.94 and BNP Paribas SA dropped 3.4% to €33.03.