At the same time, however, it would be foolish (with a lower-case "f") to believe any given business is without risk. There are no guarantees of success in the world of investing, so it's a great idea for shareholders to explore what could go wrong. Here are three reasons, then, that Under Armour's stock could fall:
High-profile sponsorships could backfire
Nike isn't sitting on its heels
Up until this point, the vast majority of Under Armour's growth has been driven by its leading position in the performance apparel segment. Going forward, however, one of Under Armour's most promising growth drivers is its young footwear business, which was launched in 2006 and represented $110 million of last quarter's sales.