Delta Air Lines, Inc.’s DAL shares gained 3.6% after reporting third-quarter fiscal 2018 earnings of $1.80 per share, surpassing the Zacks Consensus Estimate of $1.74 per shareShares of Walgreens Boots Alliance, Inc. WBA declined 2% after it reported fourth-quarter fiscal 2018 revenues of $131.53 billion, missing the Zacks Consensus Estimate of $131.60 billionCostco Wholesale Corporation’s COST shares increased 0.4% after the company reported net sales of $13.6 billion in September, up 10.3% year-over-yearShares of CRISPR Therapeutics AG CRSP advanced 0.9% after the company announced that a clinical hold on an application for a sickle cell disease treatment developed by Crispr and partner Vertex Pharmaceuticals had been lifted by the Food and Drug AssociationWant the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Delta Air Lines, Inc. (DAL): Free Stock Analysis Report Costco Wholesale Corporation (COST): Free Stock Analysis Report Walgreens Boots Alliance, Inc. (WBA): Free Stock Analysis Report CRISPR THERAPTC (CRSP): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research