It was (and still is) not completely certain that the stock is undergoing distribution:- Was only one day's selling.
- Market fell heavily, and broadly that week too.
Don't think this trade was a mistake... it just didn't work out.
Hunting for profits on the stock market
It was (and still is) not completely certain that the stock is undergoing distribution:

Accumulation is more apparent on weekly chart.
Fortis is still accumulating, up to 25% by 29th Mar.