Shares in the Africa-focused diamond miner climbed almost 6% after it revealed the Mothae kimberlite project in Lesotho may be more profitable than previously assumed.
With the markets in whiplash mode, Joe McAlinden, founder of McAlinden Research Partners and former chief global strategist with Morgan Stanley Investment Management, believes volatility is going to stick around for a while, and we might see a correction double of what we've had so far.
Average sales margins for coal miners have fallen by about half since 2011, forcing three of the U.S.'s largest publicly traded producers to file for bankruptcy protection this year.