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

Aug. 14, 2019 AC +3.93%
May 22, 2019 AC -8.10%
Feb. 13, 2019 AC -5.47%
Nov. 14, 2018 AC -11.72% Biggest DOWN
Aug. 15, 2018 AC -3.58%
May 23, 2018 AC +1.93%
Feb. 14, 2018 AC -4.89%
Nov. 15, 2017 AC +15.91% Biggest UP
Aug. 16, 2017 AC -6.72%
May 24, 2017 AC +3.53%
Feb. 15, 2017 AC +4.18%
Nov. 16, 2016 AC +6.24%

Avg (+ or -) 6.35%
Bias -0.40%, slight negative bias on earnings.

With stock at 60.50 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 55.03 to 65.97
Based on AVERAGE one-day move over last 12 quarters: 56.66 to 64.34
ased on MAXIMUM one-day move over last 12 Q’s (15.9%): 50.87 to 70.13
Based on DOWN max only (-11.7%): 53.41

Open to requests for other symbols.