As the line moves up that shows gold getting more expensive compared to silver . We can see that we are near the top of the range. While Silver could still show more weakness in very short term it looks very likely there may be some big moves up in value ahead for silver . Note several times in past silver has suddenly gained value very rapidly. I am expecting this to happen again at some point. Therefore at the moment I'd say buy silver not gold . (Physical metal of course, not shares in an )
If you feel like doing a ratio swap of silver back to gold I'd be looking at possible target of 27 to 28 in a few years time.