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

Feb. 27, 2019 BO +14.11%
Nov. 20, 2018 BO +2.13%
Aug. 28, 2018 BO -5.00%
May 24, 2018 BO -6.64%
March 1, 2018 BO +3.94%
Nov. 16, 2017 BO -3.57%
Aug. 29, 2017 BO -11.92% Biggest DOWN
May 25, 2017 BO +21.47% Biggest UP
March 1, 2017 BO -4.50%
Nov. 17, 2016 BO +13.69%
Aug. 23, 2016 BO +19.60%
May 24, 2016 BO -7.42%

Avg (+ or -) 9.50%
Bias 2.99%, positive bias on earnings.

With stock at 69.50 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 64.17 to 74.83
Based on AVERAGE move over last 12 quarters: 62.90 to 76.10
Based on MAXIMUM move over last 12 Q’s (21.5%): 54.58 to 84.42
Based on DOWN Max only (-11.9%): 61.22

Open to requests for other symbols.