Under Armour shares took a hit Monday, and "Fast Money" traders contended the once-popular stock's prospects may not improve soon.
The athletic apparel maker's stock slid more than 5 percent after Morgan Stanley kept its "underweight" rating on the stock and cut its price target. Under Armour athlete Jordan Spieth's collapse at the Masters on Sunday may not have helped.
In its note, Morgan Stanley said women's apparel growth may not meet Under Armour's expectations. Trader Brian Kelly agreed that the segment may pose a problem.
"I actually do think this is a good call on Morgan Stanley's part, and I would get out. I would take some profits," he said.