Nike's latest win in slugfest against Under Armour By: CNBC.com News April 15, 2015 at 14:33 PM EDT Nike is still the dominant brand among teens, according to a new survey by Piper Jaffray. Read More >> Related Stocks: Abercrombie & Fitch Company American Eagle Outfitters Nike Inc Piper Jaffray Companies Under Armour Urban Outfitters