Atrium Mortgage Investment Co. (OTCMKTS:AMIVF – Get Rating) was the target of a significant increase in short interest in May. As of May 31st, there was short interest totalling 22,500 shares, an increase of 23.6% from the May 15th total of 18,200 shares. Based on an average daily volume of 100 shares, the short-interest ratio […]