@ConnorD_LHC Also high on $XLY list is the 

"Automobiles" sub-industry group" (ranking 96)

The #1 raking is $TSLA
The bottom rankings are $GM $F Nissan HOG etc

So, the bottom line is:

if $AMZN and $TSLA tank, then $XLY goes..

need to time the short after next week's earnings.