why show your hand

One of the resons I sold out a couple of days ago was the bid that currently exists at 11.5c. If you were after a large chunk of TOX surely you wouldn't show your bid as the mere presence of such a large bid will ensure the stock price doesnt get there.
So my logic was that the bid was placed there so a holder could sell out around these levels.
I must admit that having watched the TOX trading over the last few days that it does look like someone is offloading, but at the saem time it looks like new investors are happy to purchase what the seller wants to offload at 13c
Interesting trading going on....will continue to watch closely....medium term I think higher, but wouldnt be surprised to see it in 12's short term