Mining Pair Trade Opportunity: Buy BHP Billiton, Sell Antofagasta By: Benzinga via Benzinga September 14, 2015 at 09:10 AM EDT BHP Billiton Limited (ADR) (NYSE: BHP) shares have lost 29 percent year-to-date, while Antofagasta plc (ADR) (OTC: ANFGY) shares ... Read More >> Related Stocks: Bhp Billiton Ltd ADR Freeport-McMoRan Frontier 100 Ishares MSCI ETF