WDC earnings analysis

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

April 30, 2020 AC -12.15%
Jan. 30, 2020 AC -2.18%
Oct. 30, 2019 AC -16.90%
July 31, 2019 AC +3.00%
April 29, 2019 AC +1.28%
Jan. 24, 2019 AC +7.52% Biggest UP
Oct. 25, 2018 AC -18.18% Biggest DOWN
July 26, 2018 AC -7.73%
April 26, 2018 AC -7.99%
Jan. 25, 2018 AC +1.82%
Oct. 26, 2017 AC -2.53%
July 27, 2017 AC -7.54%

Avg (+ or -) 7.40%
Bias -5.13%, strongly negative bias on earnings.

With stock at 45.00 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 41.39 to 48.61 (+/- 8.0%)
Based on AVERAGE one-day move over last 12 quarters: 41.67 to 48.33
Based on MAXIMUM one-day move over last 12 Q’s (18.2%): 36.82 to 53.18
Based on UP max only (+7.5%): 48.38

Open to requests for other symbols.