The short seller said in Twitter, “Citron warns investors on Aurora Canibas TSE$:ACB OTC:$ACBFF. Not a commentary on the cannabis industry, just one stock that should retrace 50%- FAST when sanity sets in. Short term target $6.5.” Aurora Cannabis shares in afternoon trading are up 17% to $11.12. Reference Link):(https://twitter.com/CitronResearch/status/948609862094569472/photo/1)