Mineral extractors and banks pressure London shares By: MarketWatch April 20, 2009 at 05:06 AM EDT Mineral extractors and banks weigh on the top London index on Monday, with BHP Billiton, Anglo American and HSBC Holdings among firms trading lower. Read More >> Related Stocks: Astrazeneca Plc ADR Bhp Billiton Ltd ADR Gsk Plc ADR HSBC Holdings Plc ADR