There is no volume on MUM @Mrsc cos the company is doing very little at the moment.
Strongly suggest that you read all the key company announcements over the last 6 to 12 months. Please understand that this is a small cap non producing mining stock which IMHO is very high spec.
I have been a shareholder for some 3 years. At one stage I was up around 80%. I should have sold then. You live and learn.