Stocks making the biggest moves midday: Walmart, PG&E, HSBC & more By: CNBC.com News February 19, 2019 at 11:58 AM EST These are the stocks posting the largest moves midday Tuesday. Read More >> Related Stocks: Freeport-McMoRan Navient Corp PG&E Corp Service Corp International Wal-Mart Stores, Inc. Willis Towers Watson Public Ltd