Skip to Main Content This copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com. Costco Earnings Beat Expectations. Why the Stock Is Dropping. By Sabrina Escobar, Mackenzie Tatananni and Teresa Rivas Share Resize Reprints Shares of Costco Wholesale were falling Friday even as earnin ...