I strongly doubt Tyhee is being manipulated. It would be too small a quant if you ask me, but to each his own. I drove the stock up almost 10% one day by purchasing 100k shares over a month ago- it's easy to push the price around with very little capital and no news, so it invites speculators to do their thing. Does it really matter? These people will get out of their shorts at the first sign of a run up anyway.