Icap shares extend recent gains as FTSE 100 rises By: MarketWatch February 10, 2010 at 04:26 AM EST The interdealer-broker is one of the strongest performers in the top U.K. index following its second upgrade this week. Read More >> Related Stocks: Barclays Plc ADR Bhp Billiton Ltd ADR Lloyds Banking Group Plc ADR