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

Oct. 23, 2019 AC +17.66% Biggest UP
July 24, 2019 AC -13.61% Biggest DOWN
April 24, 2019 AC -4.26%
Jan. 30, 2019 AC -0.56%
Oct. 24, 2018 AC +9.13%
Aug. 1, 2018 AC +16.18%
May 2, 2018 AC -5.54%
Feb. 7, 2018 AC -8.62%
Nov. 1, 2017 AC -6.79%
Aug. 2, 2017 AC +6.50%
May 3, 2017 AC -5.00%
Feb. 22, 2017 AC -6.40%

Avg (+ or -) 8.35%
Bias -0.11%, no significant bias on earnings.

With stock at 586.50 the data suggests these ranges:
Based on current IV (expected move into Friday per TOS): 524.30 to 648.70
Based on AVERAGE one-day move over last 12 quarters: 537.73 to 635.77
Based on MAXIMUM one-day move over last 12 Q’s (17.7%): 483.13 to 690.37
Based on DOWN max only (-13.6%): 506.89

Open to requests for other symbols.