Walgreens Boots Alliance, Inc.WBA is slated to release fourth-quarter and full-year fiscal 2017 results before the market opens on Oct 25. Click to get this free report Align Technology, Inc. (ALGN): Free Stock Analysis Report Henry Schein, Inc. (HSIC): Free Stock Analysis Report Cooper Companies, Inc. (The) (COO): Free Stock Analysis Report Walgreens Boots Alliance, Inc. (WBA): Free Stock Analysis Report To read this article on Zacks.com click here. In the third quarter of 2017, Walgreens Boots' gross margin contracted on account of reimbursement pressure and price inflation of branded drugs.