Sold FIT CCs,
Nov 4'16 $13.50. $0.86.
If assigned on that date, gain would be 7.3%.
Before making the sale I (obviously) looked at prices for the next three weeks (for the sake of deciding on the spacing between sales).
$13.50 strike sequence for next 3 weeks (several min after trade): 0.18, 0.32, 0.81.
See the huge jump in the last week, Nov 4? That is very unusual.
Reason: Earnings are scheduled for Nov 2.
Given that FIT beats earnings, I would bet that all those Calls at that strike (except for mine) were purchases.