At about 38% of Volume, Shorts in Control of Price. Mostly, anyway. That control can be easily lost if too much enthusiasm (greed) comes into the stock; such as, through a rapidly rising price. So they create a cap on the stock price so that they can cause up and down ripples in the stock price just large enough to make money but not too large where the upward movements create too much of a surge to push back down with short selling. Also, as the price gets higher, the cost to purchase shares of a particular volume increase. They have to have a strong percentage of the total volume to maintain control. The big players, like Citron, can afford to short large stock prices, but the one's controlling our stock are not that deep-pocketed. They do appear to work in concert to some extent and compete against each other as well. They can easily lose control. The stock price right now is largely arbitrary - IMHO. Soon this stock will be getting a great deal of attention and it will overwhelm the shorting sector. They will then lose control of price. I've noticed days when they lose control but then at some point after when the volume drops, they regain control. It's all about relative volume.