Why Lululemon's Battle With Costco Could Make or Break Its Stock

Summary
Lululemon Athletica (LULU -0.80%) is suing Costco Wholesale (COST 1.08%) for selling similar, knock-off products in its ...
Lululemon Athletica (LULU -0.80%) is suing Costco Wholesale (COST 1.08%) for selling similar, knock-off products in its warehouses. For the high-end apparel company, how this ends up playing out could be a make-or-break moment for its stock.