RE:Is it worth holding. There are several issues, small market co., no institutional buyers, neighbor ALB trading at 250 US with 20% less shares has 85% institutional ownership. They are selling also solid going concern. We are 3-4 years from this. It will be volatile until better stock exchange and completion of study, just have to wait. It should at least double by mid summer. This is a great co. I have a good many shares and don't mind the wait.