U.K. stocks extend gains as banks rise By: MarketWatch May 20, 2013 at 04:45 AM EDT Banks lead U.K. stocks higher in an upbeat session on Monday, while resource firms add pressure after oil and metals prices show broad-based losses. Read More >> Related Stocks: BP Plc ADR HSBC Holdings Plc ADR Lloyds Banking Group Plc ADR Royal Bank Scotland Group Plc Royal Dutch Shell Cl B ADR