This is the first time I remember seeing this, but the expected move is LESS than the 12-quarter historical move MAXIMUMS. $HD has moved very little on recent earnings, but current IV projects it to move more than it has since Nov 2015.

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

Feb. 26, 2019 BO -0.88%
Nov. 13, 2018 BO -0.23%
Aug. 14, 2018 BO -0.53%
May 15, 2018 BO -1.62%
Feb. 20, 2018 BO -0.13%
Nov. 14, 2017 BO +1.63% Biggest UP
Aug. 15, 2017 BO -2.65% Biggest DOWN
May 16, 2017 BO +0.59%
Feb. 21, 2017 BO +1.41%
Nov. 15, 2016 BO -2.56%
Aug. 16, 2016 BO -0.60%
May 17, 2016 BO -2.46%

Avg (+ or -) 1.27%
Bias -0.67%, negative bias on earnings.

With stock at 192.00 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 185.43 to 198.57
Based on AVERAGE move over last 12 quarters: 189.55 to 194.45
Based on MAXIMUM move over last 12 Q’s (2.7%): 186.91 to 197.09
Based on UP Max only (+1.6%): 195.13

Open to requests for other symbols.