Under Armour stock set for worst day in 2 years; Apple, AMD earnings on deck By: MarketWatch July 30, 2019 at 10:34 AM EDT Under Armour Inc. is still struggling to figure out North America, and that is weighing on its once-hot stock. Read More >> Related Stocks: Adv Micro Devices Altria Group Apple Electronic Arts Fireeye Inc Gilead Sciences Groupon Cl A Under Armour Under Armour Inc Cl C