Following the company's respective Q2 earnings reports, Goldman Sachs analyst Alexandra Walvis reiterated her Buy rating on Under Armour (UAA) and kept the stock on the firm's Conviction List while she maintained her Sell rating on Ralph Lauren shares. She came away encouraged by Under Armour's turnaround and sees significant potential for growth in both sales and earnings as the company focuses on product, improved distribution and ongoing cost discipline, Walvis tells investors. For Ralph Lauren, she is skeptical on the near-term opportunity for the brand to inflect its revenue growth given challenges in both wholesale and direct-to-consumer in the "increasingly competitive" core apparel environment, Walvis said.