Today's drop was caused by a single dumper, which was from RBC (290,730 of 533,363 shares). It happens once in awhile in the past. Once occurred, it tended to bounce back up in a few days. I took the opportunity to buy in some shares today. If you are an experienced investor, you wouldn't be in panic mode. I'm sorry but this is the typically way how this stock performs, expecially in the resource sector. Same for RGX.. You will see and agree with me. IMO.