Yo-Yo Market In S&P 500 Index Futures Continues By: Benzinga via Benzinga July 10, 2015 at 11:48 AM EDT Joel Elconin is the co-host of Benzinga's #PreMarket Prep, a daily trading idea radio show. S&P 500 index futures were trading ... Read More >> Related Stocks: Apple Dow Jones Industrial Average (EOD) Facebook General Electric SPDR S&P 500 ETF Trust