This chart is looking for a potential top in SPX using fan angles from cloned upward projecting fans. The reference fan for all angles is the upward projecting fan on bottom left. My thoughts are where these lines are concentrated there is resistance until crossed at which time they become support. SPX is currently sitting just below a concentration of dark blue lines while the light blue lines are acting as support. If we make another run and cross the dark blue lines, next target is the concentration of red lines with a target around 1740.
I also use Gann fanns and I believe in their sense even if they are more difficult to interprete than other formations that seem to be clearer. In your case I think you should start the Gann earlier in June and then you see it clerer that there is another gap to be filled at 153.22. And with this fann you date it in early September. Your bottom then appears in early October.