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

March 20, 2019 AC +9.61%
Dec. 18, 2018 AC -7.91%
Sept. 20, 2018 AC -2.86%
June 20, 2018 AC +0.83%
March 22, 2018 AC -7.99%
Dec. 19, 2017 AC +4.02%
Sept. 26, 2017 AC +8.51%
June 29, 2017 AC -5.11%
March 23, 2017 AC +7.40%
Dec. 21, 2016 AC +12.68% Biggest UP
Oct. 4, 2016 AC -0.56%
June 30, 2016 AC -9.15% Biggest DOWN

Avg (+ or -) 6.39%
Bias 0.79%, slight positive bias on earnings.

With stock at 33.50 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 30.71 to 36.29
Based on AVERAGE move over last 12 quarters: 31.36 to 36.54
Based on MAXIMUM move over last 12 Q’s (12.7%): 29.25 to 37.75
Based on DOWN Max only (-9.2%): 30.43

Open to requests for other symbols.