S&P 500 Index Futures Giving Back Some Of Friday's Gains By: Benzinga via Benzinga April 13, 2015 at 14:12 PM EDT Joel Elconin is the co-host of Benzinga's #PreMarket Prep, a daily trading idea radio show. S&P 500 index futures are trading ... Read More >> Related Stocks: SPDR S&P 500 ETF Trust