Probably because of this.
WAMPQ Major Increase in Shorts and volume..
Report closes 5/28 BiWeekly 31,303 Shares Short
Report closes 5/14 BiWeekly 15,864 Shares Short
Report closes 4/30 BiWeekly 17,178 Shares Short
Report closes 4/15 BiWeekly 17,490 Shares Short
Report closes 3/31 BiWeekly 17,579 Shares Short
Report closes 3/15 BiWeekly 10,750 Shares Short
Report closes 2/26 BiWeekly 45 Shares Short
Report closes 2/12 BiWeekly 0 Shares Short
Report closes 1/29 BiWeekly 2498 Shares Short
Report closes 1/15 BiWeekly 1156 Shares Short