I propose a very short case study, without any responsibility whatsoever on people involved in the conversation.
Let us say this: if an individual would have been in possession for quite a while of 800k shares of KBLB at an average cost of 6 cents,
and he would not have sold at 2 nor at 10 cents for his long stance, what would his possibilities be ?
One of those would be to take advantage of the gyrations of the stock price and therefore realise some gain and a possible lowering of his average share cost.
Thus he could keep a core of them.
As a starting point, which size would he consider ?