Hi Pic
I have one more possibility re. the juniors. Many of the juniors represent huge value when looking at in the ground resources and potential for price appreciation or explosion. We have seen in the past a pounding of shares while one or two big houses establish positions. The individual share holders get discouraged and switch out of the poor performing shares at depressed prices.
After the big house gets a significant position, the share price starts to trade up to value and beyond. This is what I am guessing might be happening to the jr miners right now. We are just pawns in the big boy's games.