Justin Sullivan/Getty Images News Under Armour, Inc. (NYSE:UAA) (NYSE:UA) saw its stock quote peak above $50 in 2015, following its IPO in November 2005. Rapid growth in its synthetic-fiber sports apparel and shoe business targeting serious athletes helped to transform this equity into a top "growth" name after a decade of public trading. YCharts - Under Armour (Class A), Stock Price Changes, Since November 2005 IPO Then, business trends reached their zenith, and the company moved its strategy toward floodi ...