#Earnings $SKX reports tonight. Below are details on earnings one-day moves over the last 12 quarters.

April 18, 2019 BO -10.43%
Feb. 7, 2019 AC +15.19%
Oct. 18, 2018 AC +13.78%
July 19, 2018 AC -20.99%
April 19, 2018 AC -27.04% Biggest DOWN
Feb. 8, 2018 AC +7.54%
Oct. 19, 2017 AC +41.44% Biggest UP
July 20, 2017 AC +0.67%
April 20, 2017 AC -2.56%
Feb. 9, 2017 AC +19.32%
Oct. 20, 2016 AC -17.26%
July 21, 2016 AC -22.34%

Avg (+ or -) 16.55%
Bias -0.22%, no significant directional bias on earnings, just a big-move bias.

With stock at 34.35 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 30.07 to 38.63
Based on AVERAGE move over last 12 quarters: 28.67 to 40.03
Based on MAXIMUM move over last 12 Q’s (41.4%): 20.12 to 48.58
Based on DOWN Max only (-27.0%): 25.06

Open to requests for other symbols.