If the GSR is defining the bullish / bearish impulses in the move, where it declined 15 weeks starting the beginning of July up until mid October (15 weeks), then we should see weakness for the next 4 weeks minimum (6 weeks total – 38% time retrace), bringing us to the end of tax loss selling in mid-December.
The GSR should not exceed 90 on a weekly closing basis if this assessment is correct.
My two cents.