US stocks open higher; earnings, dollar eyed By: CNBC.com News March 20, 2015 at 09:30 AM EDT U.S. stocks opened sharply higher on Friday, continuing several days of alternating gains and losses as investors weighed earnings reports. Read More >> Related Stocks: Amazon.com Bank of New York Mellon Darden Restaurants Macerich Co Sentinelone Inc Cl A Simon Property Group Tiffany & Co