Downgrades fly on the big Australian miners with both Rio Tinto and BHP Billiton downgraded to...

|About: Rio Tinto plc (RIO)|By:, SA News Editor

Downgrades fly on the big Australian miners with both Rio Tinto and BHP Billiton downgraded to Hold at Macquarie, and BHP downgraded to Hold at BAML. RIO -2.3%, BHP -2.2% premarket.