There are so many IHGP phantom shares out now IMO restrictions have place on buying and selling. NITE, UBSS who are the MM's for Penson appear to have no inventory and continually short sell. Believe me this situation is being looked into as many have complained about this per my stickey note. You seemingly like to complain, have you contacted Senator Sanders yet? Here you go: http://sanders.senate.gov/contact/