United States Stock Market Index (US400) traded at 3467 this Monday February 2nd, increasing 30 or 0.88 percent since the previous trading session. Looking back, over the last four weeks, US400 gained 2.22 percent. Over the last 12 months, its price rose by 8.37 percent. Looking ahead, we forecast United States Stock Market Index (US400) to be priced at 3331 by the end of this quarter and at 3033 in one year, according to Trading Economics global macro models projections and analysts expectations.