Credit Suisse Upgrades BHP Billiton To Neutral By: Benzinga via Benzinga June 24, 2015 at 09:56 AM EDT Credit Suisse upgraded BHP Billiton Limited (ADR) (NYSE: BHP) from Underperform to Neutral. BHP Billiton shares have dropped 34.41 ... Read More >> Related Stocks: Bhp Billiton Ltd ADR