Updated for buys on 1/18
There is an excellent chance that SPX breaks through its Primary Downtrend Line, resistance at 1850 level and rallies to tag the upper line of its current Active Price Channel (APC, thick orange) around 1900.
There is a small chance that SPX sells off early in the week. A daily close below its 20 D-SMA would signal a possible test of lower line of APC and possibly 50 D-SMA around 1800. My plan is to do my 3rd buy around 1806 should SPX sells off this week.