SPX (S&P500) as of October 28, 2020: SPX decreased by 119.65 (3.53%) points. The index gapped down today and forming a double top pattern ("M"). The neckline of the double top pattern is at 3209.45, breaking of which will penetrate the WMA-200. If it happens, the long-term uptrend will reverse and may lead to more downfall. However, if it goes below the dynamic support of WMA200, the next support zones are around 3100 and 2975.