Fed speakers, Tiffany results loom on Wall Street By: CNBC.com News March 20, 2015 at 05:57 AM EDT U.S. stock index futures ticked higher on Friday, ahead of earnings from Tiffany & Co and speeches by Federal Reserve policymakers. Read More >> Related Stocks: Bank of New York Mellon Darden Restaurants KB Home Sentinelone Inc Cl A Tiffany & Co