S&P 500 Index Futures Trading Lower In Wild Session By: Benzinga via Benzinga May 18, 2016 at 15:01 PM EDT S&P 500 index futures are trading lower by three points at 2040.50 in Wednesday's session. In one of the most volatile ... Read More >> Related Stocks: General Electric JPMorgan Chase & Co SPDR S&P 500 ETF Trust