Under Armour (NYSE: UA) (NYSE: UAA) was a huge hit among athletes and investors alike in its first decade on the public markets. It had popular, innovative products and prominent celebrity endorsement deals. Founder and chief executive Kevin Plank wasn't shy about his plans to take on athletic giant Nike.
But then it started to fall off the pace. Under Armour lost ground in the U.S. marketplace, executive turnover began to take a toll, and sales and margins suffered.
Despite the company's problems -- and its falling stock price -- it still has a strong brand to build on and a promising plan to get back in the game. But it's true that investing in Under Armour today doesn't present the same kind of investing opportunity it did a decade ago. So what kind of investment is it?