"My guess is we make a move back to 1,975 to 2,000, and then we reassess," said Steve Massocca of Wedbush Securities. The S&P 500 closed below 1,900 for the first time since September on Wednesday and broke below 1,888 Thursday — a trend line connecting October 2014 lows and lows from August and September 2015. It was also above the 1,867 closing low of 2015, which many analysts had targeted as support.“