The SP500 has failed to hold within the 1193-1948 range and closed at 1913.85 with a loss of -58.33 or -2.96%. If it fails to find intermediate support and fails to move above last Friday’s high at 1993.48, then it could move toward the potential support level at 1862.49. The near term resistance level continues to be at 2040.24.
SPX
(click the chart to enlarge)

The SPY closed at 191.77 today with a loss of -5.90 or -2.98%. The level at 204.40 still is the potential resistance and the October 2014 low remains to be the potential support.
SPY

The Nasdaq 100 finished the session with a loss of 131.95 points or -3.09% and closed at 4142.63. The potential resistance remains to be at 4349.93 and the potential support continues to be at 3765.28. The December closing low at 4089.60 could be a possible short term support.
NDX

The Russell 2000 ended the session at 1128.05 with a loss of -31.40 or -2.71%. It has dipped below the December closing low once again. The potential support continues to be the October 2014 closing low at 1049.30 and the potential resistance remains to be the price gap between 1175.51 and 1180.06.
RUT

The market is still highly volatile with huge moves and large opening gaps. It probably will not give any clues on whether the trend has changed until it has reached the October 2014 level or the support level prior to the August 21, 2015 breakdown. Until the market has showed its intention, it would be prudent to move to the sideline.