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3 Stocks That May Be Crushed by a Strong Dollar

A surging U.S. dollar is the last thing commodities such as copper and gold need, along with the companies that mine them. An analysis of the technical chart for the dollar index (DXY)—a basket to measure the value of the dollar versus other currencies, has broken out—and that could spell bad news for companies such as Vale S.A. ( VALE), Newmont Mining Corp. ( NEM) and Buenaventura Mining Co. ( BVN), causing them to plunge by as much as 20%.