Is a Time-Shifted #SPX 1987 a Better Analog for $SPX 2015?

1. The time shift for matching climatic sell-off lows between 1987 and 2015 is 39 trading days.
2. In 1987, and in 2011, it took SPX between 34 & 40 trading days to put in the tradable bottom.
3. Thus it projects the SPX 2015 tradable bottom to be put in the week starting with Monday October 12th, and continuing thru following Tuesday October 20th, 2015.