How retail bankruptcies took their toll on Under Armour in latest quarter By: MarketWatch April 27, 2017 at 12:31 PM EDT Under Armour said North American sales suffered in the first quarter from store closures and liquidations across retail. Read More >> Related Stocks: GX Defense Tech ETF J C Penney Company Inc Lululemon Athletica Macy's Nike Inc Ralph Lauren Corp Standard & Poors 500 Under Armour