Stocks making the biggest moves premarket: Biogen, Boeing, Walmart, Apple, Clorox & more By: CNBC.com News March 21, 2019 at 08:13 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Apple Biogen Idec Boeing Co Clorox Co ConAgra Foods Darden Restaurants GUESS Herman Miller Inc Lands' End Inc Micron Technology Tootsie Roll Industries Wal-Mart Stores, Inc. Williams-Sonoma