Sorry for late reply. Just came back from the mens tennis night.
The flip was just the luck. I had no idea that the SP will dropped so much. I needed cash to buy another stock.
Here what I can see from the Block T&S history.
Cannachord was very active in the first 5 to 30 minutes of trading. They bought (or cover) 3 big blocks of 1.1 M, 1M, 0.75M shares. They were selling on the way down from the $1.62 but not as activly as in the morning.
The main buyer by far responsible for the spike from $1.5 to $1.62 (only 10k was swapped at $1.63) was broker #11 Orion Security (as far as I remember they were sold to Macquarie Group).
On the way down from $1.62 to $1.51 main organized sellers with large volumes were:
85- Scotia Bank
002- Royal Bank
79 - CIBC
80 - National Bank
I have no idea if they were just selling (taking profit) or shorting. Certainly you can see that the push down was institutional and well orchestrated.
Tomorrow is another day.We will see if there is some buying power left there.