US stocks open lower; Greece debt talks eyed By: CNBC.com News February 17, 2015 at 09:30 AM EST U.S. stocks opened slightly lower on Tuesday amid the prolonged Greece-euro zone standoff and stabilizing oil prices. Read More >> Related Stocks: Actavis Plc Agilent Technologies Analog Devices CF Industries Holdings Cabot Oil & Gas Charles Schwab DIRECTV Devon Energy Duke Energy Fidelity National Financial FirstEnergy Corp Fossil Group Garmin Ltd Hormel Foods Jack IN The Box Inc La-Z-Boy Inc Marathon Oil Newmont Mining Noble Energy Nordstrom The Priceline Group Wal-Mart Stores, Inc.