RBS slides in downbeat U.K. market By: MarketWatch June 13, 2013 at 04:38 AM EDT Royal Bank of Scotland Group PLC slides in a downbeat U.K. market on Thursday, after the bank said Chief Executive Stephen Hester will step down. Read More >> Related Stocks: Barclays Plc ADR HSBC Holdings Plc ADR Lloyds Banking Group Plc ADR Royal Bank Scotland Group Plc Royal Dutch Shell Cl B ADR