Miners are leveraged to Price of Gold. Over 100 years the ratio of Miners to gold had dropped that is indicated by BGMI to gold ratio. It has been lowest since 1964.

So as XAU to gold ratio. Since 2009 the ratio has dropped 90% forming a parabolic drop.
In 2009 financial crash it dropped below the support line of 20 year trading range and ever since it has remained below it.
The ratio made low in Jan 2016 and now it has formed HnS. So it appears. Once the HnS is confirmed expect the the ratio to be back inside the normal range box.

Signs are there look at the GSV massive HnS in weekly.