It helped the company make Stephen Curry their focal point. Now two MVPs and a championship later, Curry is the most popular player in the league and has the most sales sneaker-wise, too.
Had KD signed with Under Armour for their massive offer, he would have easily been the face of the brand. It may not have turned out well, since his 2014-15 season was full of injuries. With that, it would've meant tons of money lost for the brand.
With Curry, they hit the jackpot. Their brand revenues have increased to $5 billion, and they are on track to outpace Nike in percentage increase on stock price...for the first time ever. Curry is already on track to outsell KD's sneakers by over $100 million in sales.
While it's all good for UA, what does it mean for Nike? Well, they really don't have too much to worry about. It well take A LOT for the likes of Under Armour and even Adidas to even come close to the sales and worth of the swoosh.
However, it's a good start for Under Armour. No one would have expected the brand to come up this big like they have as of recent.