Costco, Tiffany, Palo Alto Networks to report quarterly results By: MarketWatch May 27, 2015 at 00:01 AM EDT Among the companies whose shares are expected to see active trade in Wednesday’s session are Costco, Tiffany, and Palo Alto Networks. Read More >> Related Stocks: Costco Wholesale Hormel Foods Michael Kors Holdings Palo Alto Networks Inc Seaworld Entertainment Inc Company Tiffany & Co