S&P 500 Index Futures Fully Lower By: Benzinga via Benzinga March 22, 2016 at 10:50 AM EDT S&P 500 index futures are trading lower by four points at 2038.75 in Tuesday's session. Off the open, the contract found ... Read More >> Related Stocks: Apple Dow Jones Industrial Average (EOD) Procter & Gamble SPDR S&P 500 ETF Trust