...The arrangement with Hambro “gives Rio the right to look over Hambro’s shoulder at confidential data they are getting.”....
The quote is from a Mineweb article back in March, since when several funds have stepped up their holdings (they now hold near 30%) and the price has soared beyond 2 and beyond 3.
I wouldn't be surprised to see this share reach 10 this year (although I guess they might split it before then). A year ago these were 1.
The article went on to quote Hambro as suggesting POG will need the backing of a very big player if things go as expected, and pointed out that Rio wants a presence in precious metals and/or diamonds in Russia.
http://www.mips1.net/mgjr.nsf/0/85256ACE0035918D42256CE70057FB4E?OpenDocument
Edit: In the past few weeks POG has listed in the USA (Ticker POGNY) and is planning to follow this up with a promotional roadshow. So presumably any move by RIO (if there is one) is at least a few months down the line, giving time for them funds to load up some more, but leaving fewer for the rest of us to get hold of.