Big volume? How do you figure?
Average vol for CMM is between 600K - 1.1M shares per day.
We barely touched 300K today.
Compare to: 15,000,000 shares traded/dumped March 14-15
2,000,000 shares traded/dumped after each negative PR.
It was probably some wearly long got tired of holding this shiit and put in a market order....ooops!