Yep. It's pretty blatent at this point that COHI is trying to manipulate price with the constant jockying to drop the sell price. They are putting a stronghold on the price, because if you've been watching, when COHI isn't on level2 the price is fairly stable. Then, COHI enters and the sell prices get manipulated. What a prick.
I'm just unsure of how legal that is, since most MM's dont seem to be so blantent. According to ThinkorSwim this is a Hard to Find on the short side.