Stocks making the biggest moves premarket: JC Penney, Square, Tesla, L Brands & more By: CNBC.com News February 28, 2019 at 07:58 AM EST These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Aci Worldwide Inc Apple Block Inc Booking Holdings Inc Box Inc Bristol-Myers Squibb Celgene Corp Fitbit Inc HP Inc Horizon Therapeutics J C Penney Company Inc KKR & Company LP L Brands Party City Holdco Inc Seaworld Entertainment Inc Company Sotheby's Holdings Southwest Airlines Tencent Music Entertainment ADR Tesla, Inc. Twitter, Inc. Western Union