Nike is down 12 percent in one month — should you buy? By: CNBC.com News September 06, 2017 at 12:42 PM EDT Some strategists are backing away from shares of Nike, which have fallen nearly 12 percent in the past month. Read More >> Related Stocks: Dick's Sporting Goods Inc Footlocker Inc Nike Inc The Finish Line, Inc. - Class A Common Stock Under Armour