Wall Street to eye ADP report ahead of payrolls By: CNBC.com News June 04, 2014 at 04:58 AM EDT U.S. stock index futures signaled a lower open as caution sets in ahead of this week's key risk events. Read More >> Related Stocks: Brown-Forman Hovnanian Enterprises Inc Hovnanian Entr Dep A Mazda Motor Corp Nissan Motor Co. Ltd Sentinelone Inc Cl A