Under Armour Inc.'s stock slumped 2.3% in premarket trade Tuesday, after the athletic apparel company said Chief Financial Officer Brad Dickerson will step down after seven years in the position to pursue another opportunity. Dickerson, who was also named chief operating officer earlier this year, will remain with the company until February 2016, as the company searches externally for his replacement. The new opportunity Dickerson is pursuing it outside of the athletic performance industry, Under Armour said. The stock has soared 52% year to date through Monday, while the S&P 500 has lost 2%.
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