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

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
March 30, 2016 AC -0.09%

Avg (+ or -) 5.59%
Bias -0.02%, no significant bias on earnings.

With stock at 40.00 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 37.05 to 42.95
Based on AVERAGE move over last 12 quarters: 37.76 to 42.24
Based on MAXIMUM move over last 12 Q’s (12.7%): 34.93 to 45.07
Based on DOWN max only (-9.2%): 36.34

Open to requests for other symbols.