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

Jan. 25, 2019 BO -2.61%
Nov. 8, 2018 BO -8.96% Biggest DOWN
July 26, 2018 BO +10.87% Biggest UP
April 26, 2018 BO +1.20%
Jan. 31, 2018 BO +1.07%
Nov. 9, 2017 BO +1.27%
July 26, 2017 BO -1.91%
April 20, 2017 BO -2.50%
Jan. 24, 2017 BO +6.61%
Nov. 8, 2016 BO -5.44%
July 21, 2016 BO -0.34%
April 21, 2016 BO +1.14%

Avg (+ or -) 3.66%
Bias 0.03%, no bias on earnings.

With stock at 46.50 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 44.24 to 48.76
Based on AVERAGE move over last 12 quarters: 44.80 to 48.20
Based on MAXIMUM move over last 12 Q’s (10.9%): 41.45 to 51.55
Based on DOWN max only (-9.0%): 42.33

Open to requests for other symbols.