In my first analysis we see that SPX is in a very important moment, when a Dark Cloud Cover appear in a previous bottom region (blue line). I see two scenarios where I could trade SPX.
Scenario 1: It goes to the orange line (previous top region) and does a bullish pattern. Then it might have the strenght to break the blue line and seek the green line, or even close the green gap (but I think this is too optmistic).
Scenario 2: It goes straight down or starts doing lower tops and bottoms. Then I would think the bulls are losing strenght and SPX could break down the pink line and seek at least the red line.