Date Short Interest % Change Avg. Daily Share Volume Days to Cover Apr 30, 2015 8,051,453 -0.26 315,809 25.49 Apr 15, 2015 8,072,610 0.00 307,645 26.24 Mar 31, 2015 8,072,900 -10.71 592,665 13.62 http://www.otcmarkets.com/stock/GTATQ/short-sales