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

Jan. 30, 2019 AC +10.81% Biggest UP
Oct. 30, 2018 AC +3.80%
July 25, 2018 AC -18.96% Biggest DOWN
April 25, 2018 AC +9.06%
Jan. 31, 2018 AC +3.31%
Nov. 1, 2017 AC -2.04%
July 26, 2017 AC +2.91%
May 3, 2017 AC -0.62%
Feb. 1, 2017 AC -1.79%
Nov. 2, 2016 AC -5.63%
July 27, 2016 AC +1.34%
April 27, 2016 AC +7.19%

Avg (+ or -) 5.62%
Bias 0.78%, small positive bias on earnings.

With stock at 182.00 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 170.98 to 193.02
Based on AVERAGE move over last 12 quarters: 171.77 to 192.34
Based on MAXIMUM move over last 12 Q’s (19.0%): 147.49 to 216.51
Based on UP max only (10.8%): 201.67

Open to requests for other symbols.