They don't do "deep dive" research there which would certainly be required to "get it" with Resverlogix's epigenetic drug approach.  Its a "mob psycology" at work there that aims to concentrate all of the followers' buying and selling power into selected targeted stocks, causing dramatic effects in share price.  Presented with RVX they might just as well prey on SP weakness (which we have plenty of on a backwoods exchange like the TSX) as opposed to pump-up a clear and well-understood opportunity on a world-stage US stock exchange.   JMHO