#Earnings $TWTR reports tomorrow morning. Below are details on earnings one-day moves over the last 12 quarters.

In all cases except the second to last date on the list below, TWTR kept advancing in the same direction after one day after earnings. So for the 5-day totals, add about 1-4% more than the one-day numbers below.

Feb. 7, 2019 BO -9.83%
Oct. 25, 2018 BO +15.46%
July 27, 2018 BO -20.54% Biggest DOWN
April 25, 2018 BO -2.36%
Feb. 8, 2018 BO +12.15%
Oct. 26, 2017 BO +18.49% Biggest UP
July 27, 2017 BO -14.12%
April 26, 2017 BO +7.91%
Feb. 9, 2017 BO -12.33%
Oct. 27, 2016 BO +0.63%
July 26, 2016 AC -14.52%
April 26, 2016 AC -16.28%

Avg (+ or -) 12.05%
Bias -2.95%, negative bias on earnings.

With stock at 34.00 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 30.56 to 37.44
Based on AVERAGE move over last 12 quarters: 29.90 to 38.10
Based on MAXIMUM move over last 12 Q’s (20.5%): 27.02 to 40.98
Based on UP max only (+18.5%): 40.29

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