Stocks narrowly mixed; rising yields, Greece eyed By: CNBC.com News May 18, 2015 at 09:35 AM EDT U.S. stocks opened slightly lower as renewed concerns about Greece's ability to pay back its creditors weighed on investor sentiment. Read More >> Related Stocks: Agilent Technologies Altera Corp Analog Devices Ascena Retail Group Autodesk BlackRock Burberry Group Plc ADR Campbell Soup Dick's Sporting Goods Inc Endo Int'l Plc Footlocker Inc GX Defense Tech ETF Hello Group Inc ADR Hewlett-Packard Hormel Foods Intel Corp JA Solar Holdings, Co., Ltd. - American depositary shares, each representing fiv L Brands Mast Global Battery Recycling & Production ETF Medtronic Microsoft Red Robin Gourmet Burgers Inc Rexnord Corp Ross Stores Salesforce Sentinelone Inc Cl A Synopsys Inc Urban Outfitters Vodafone Grp Plc ADR Wal-Mart Stores, Inc. Williams-Sonoma