You need to read up on how index funds work.It may be...

You need to read up on how index funds work.

It may be automatically investing based on trying to maintain a fixed % of assets in uranium juniors. Alternatively it may be that the overall funds under management are growing.

The final possibility is what you're angling at I think, is that maybe they have performed detailed analysis and have specifically decided to increase bmn holdings due to their perceived future upside.

I would argue the two former options are more likely on the basis that the global fund has generally been adding to its bmn holdings regardless of price over the last year or two