RE:Strength and vol so heavy I don't think the company is even close to considering a buyout at this time. Volume has increased and yes I agree it is likely due to institutional money buying shares on the open market. They are doing so because the company is significantly undervalued and they have a great management team at the helm steering this company.
If anything this company would be considering an accretive acquisition but the time is not likely right since in the near term they will be doubling their Au production numbers due to organic growth. I can see them selling the Toroparu and Juby projects after the lower Marmato mines goes into production to either assist with the construction build of Soto Norte and the acquiring and additional producing mine once they are cash flowing from multiple properties.