You have 5k in GNH and your whole portfolio seems to be 8k from your post. This means you have over 50% of your portfolio in GNH and that would be viewed extremely overweight by any standards so to be safe, you should probably stay how you are. Speaking only for me, my portfolio is even heavier in GNH but I am aware of the risk (which is high considering this is an explore co) but I am comfortable with my position but that is me.
Glorieux