Is China the key to Gazprom (EDR) maintaining global gas dominance? David Iben of Kopernik Global Investors weighs in. After burning through hundreds of millions, 3D Systems (DDD) rides the bubble again. The story behind Rackspace Technology’s (RXT) collapsing margins and lousy quarter. And Hanesbrands (HBI) hunts for the next generation of “innerwear” consumers (that’d be underwear to you and me). The Drill Down with Cory Johnson offers a daily look at the business stories behind stocks on the move.

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