Led "days to cover" published criteria provides short positions ( traders ) heads up of a potential short squeeze in the future to close out positions by purchasing shares at the market price.  And at the same time provides long positions an indication that the stock could take a big jump during a short squeeze.  But volume is what is needed which RVX does not have for the existing short positions on RVX to alter the SPP to significant heights as perhaps was experienced by AMRN. 

Led FYI, the following link provides short positions for RVX stateside on the OTC if it helps.

https://www.otcshortreport.com/company/RVXCF

Koo