#Earnings $AZO reports ton tomorrow morning. Below are details on earnings 1-day moves over the last 12 quarters.

Sept. 18, 2018 BO -1.97%
May 22, 2018 BO -9.48%
Feb. 27, 2018 BO -11.06%
Dec. 5, 2017 BO 0.42%
Sept. 19, 2017 BO -5.00%
May 23, 2017 BO -11.84% Biggest DOWN
Feb. 28, 2017 BO -0.58%
Dec. 6, 2016 BO 0.43%
Sept. 22, 2016 BO -0.42%
May 24, 2016 BO 2.47%
March 1, 2016 BO 2.06%
Dec. 8, 2015 BO 5.83% Biggest UP

Avg (+ or -) 4.30%
Bias -2.43%, negative bias on earnings.

Since it’s only Monday, I checked the 5-day moves… the extremes were LOWER than the 1-day moves, meaning extreme 1-day moves tend to fade over the following few days.

With stock at 815.00 the data suggests these ranges.
Based on current IV (expected move per TOS): 771.48 to 858.52
Based on AVERAGE move over last 12 quarters: 779.98 to 850.02
Based on MAXIMUM move over last 12 Q’s (11.8%): 718.50 to 911.50

Open for requests on other symbols.