Take a look at the businesses making headlines earlier than the bell. SanDisk — The maker of flash reminiscence merchandise, together with reminiscence playing cards, climbed greater than 4%. The inventory, spun off from Western Digita l final February, enters the S & P 500 on Friday. Tilray Manufacturers — The hashish processor and proprietor of Montauk Brewing slid 14% after declaring a 1-for-10 reverse inventory break up , efficient on the Dec. 2 market open. The inventory closed at $1.03 on Wednesday. CME Group — The father or mother of Chicago Mercantile Trade, Chicago Board of Commerce, New York Mercantile Trade and Commodity Trade fell 0.7% after saying its markets had been halted on account of “a cooling problem at CyrusOne knowledge facilities,” which stopped buying and selling in U.S. inventory index futures. Nasdaq Inc . was down 0.5% and Intercontinental Trade , the proprietor of the New York Inventory Trade, was larger by 0.7%. Jefferies — The funding agency shed 1% after The Monetary Occasions, citing folks with data of the matter, stated the U.S. Securities and Trade Fee was investigating whether or not Jefferies gave traders sufficient info on its Level Bonita fund’s publicity to bankrupt auto elements maker First Manufacturers Group. Jefferies’ publicity to First Manufacturers, which collapsed underneath a collection of advanced debt agreements, lifted considerations of different unhealthy loans. Retailers — The nation’s largest retailer chains had been principally larger on Black Friday, the unofficial begin of the vacation purchasing season typically that includes giant gross sales and reductions. Macy’s rose 1.5%, Finest Purchase added 0.4%, Walmart superior 0.2% whereas Costco , Goal and Dillard’s had been fractionally larger.