#Earnings $IBM reports tonight. Below are details on earnings THREE-DAY moves over the last 12 quarters.

(I used 3-day moves since Friday is 4 days away, and the 3-day range is higher than the 1-day).

Tue 10/16/2018 AC -11.04%
Wed 07/18/2018 AC +1.27%
Tue 04/17/2018 AC -9.95%
Thu 01/18/2018 AC -3.99%
Tue 10/17/2017 AC +10.60%
Tue 07/18/2017 AC -4.49%
Tue 04/18/2017 AC -5.68%
Thu 01/19/2017 AC +2.24%
Mon 10/17/2016 AC -2.09%
Mon 07/18/2016 AC +0.36%
Mon 04/18/2016 AC -2.11%
Tue 01/19/2016 AC -4.37%

Avg (+ or -) 4.85%
Bias -2.44%, negative bias on earnings.

With stock at 123.50 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 116.94 to 130.06
Based on AVERAGE move over last 12 quarters: 117.51 to 129.49
Based on MAXIMUM move over last 12 Q’s (11.0%): 109.87 to 137.13

Open for requests on other symbols.