CDEL is known for it and just so happens they just released earnings saying they were up 267% this year. Shocker but check out this article about MM’s then compare RSSV short volume. https://www.globenewswire.com/news-release/2018/06/14/1524626/0/en/Explains-Illegal-Naked-Shorting-Being-Perpetrated-By-Major-Market-Makers-on-MAXD-Shares.html