 Liberty Sirius XM Group Series A NASDAQ:LSXMA was the target of a significant increase in short interest during the month of March. As of March 13th, there was short interest totalling 6,056,100 shares, an increase of 25.9 from the February 27th total of 4,810,000 shares. Currently, 6.1 of the companys shares are sold short. Based ... 