S&P 500 Index Futures Mixed By: Benzinga via Benzinga July 23, 2015 at 10:39 AM EDT Joel Elconin is the co-host of Benzinga's #PreMarket Prep, a daily trading idea radio show. S&P 500 index futures are ... Read More >> Related Stocks: Apple Dow Jones Industrial Average (EOD) General Electric Microsoft SPDR S&P 500 ETF Trust