Short interest through September month-end (click on the chart to enlarge it) is below. Short interest is up nearly 100% month-over-month (i.e., September month-end over August month-end). The prospectus supplement related to the PVCTP "IPO" was filed with the SEC on September 4. There would appear to be some shorting in advance of the preferred stock offering.
"Lucy...you got some 'splainin' to do!"