BECAUSE THEY ATTRACT SHORT SELLERS.THIS THING HAD GOOD NEWS.I BOUGHT PRE MARKET 3K AT 1.17.THEN I SOLD 2K AT 1.21,AND DEBATED TO EITHER KILL THE OTHER 1K OR KEEP IT.BAD MOVE TO KEEP IT. 03/07/18 30159 Stock EH Sell -- SHIP -- -- -- 2,000 1.21 Executed 03/07/18 30151 Stock EH Buy -- SHIP -- -- -- 3,000 1.17 Executed