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

May 23, 2019 AC -7.32%
Feb. 28, 2019 AC -0.90%
Nov. 29, 2018 AC +9.93%
Aug. 23, 2018 AC +14.81%
May 24, 2018 AC -5.20%
March 1, 2018 AC +9.26%
Nov. 16, 2017 AC +17.89% Biggest UP
Aug. 24, 2017 AC +8.47%
May 25, 2017 AC -6.97%
Feb. 23, 2017 AC -3.23%
Nov. 29, 2016 AC +0.41%
Aug. 25, 2016 AC -10.10% Biggest DOWN

Avg (+ or -) 7.87%
Bias 2.25%, positive bias on earnings.

With stock at 129.00 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 118.69 to 139.31
Based on AVERAGE one-day move over last 12 quarters: 118.84 to 139.16
Based on MAXIMUM one-day move over last 12 Q’s (17.9%): 105.92 to 152.08
Based on DOWN max only (-10.1%): 115.97

Open to requests for other symbols.