Stocks making the biggest moves premarket: CME, TLRY, SNDK

Check out the companies making headlines before the bell. SanDisk — The maker of flash memory products, including memory cards, climbed more than 4%. The stock, spun off from Western Digita l last February, enters the S & P 500 on Friday. Tilray Brands — The cannabis processor and owner of Montauk Brewing slid 14% after declaring a 1-for-10 reverse stock split , effective at the Dec. 2 market open. The stock closed at $1.03 on Wednesday. CME Group — The parent of Chicago Mercantile Exchange, Chicago Board of Trade, New York Mercantile Exchange and Commodity Exchange fell 0.7% after saying its markets were halted due to "a cooling issue at CyrusOne data centers," which stopped trading in U.S. stock index futures. Nasdaq Inc . was down 0.5% and Intercontinental Exchange , the owner of the Ne