Gold's run up was largely catching up, and not creeping into over-valuation. Now, realize that gold is a heavily manipulated market. There are oodles of shadow whales doing all kinds of shady things in that market with unlimited amounts of money (like private central banks). The past year has shown that with multi-trillion dollar market moves in a second. I think gold will always go with the pace of the stock market because they're both driven by the same thing, inflation.
Gold has however decoupled from the money supply. Gold should be about $9000/oz if it was tied to the collapse of the dollar. Below is a chart of gold vs the S&P 500 since the US killed the gold standard. It may seem like it doesn't do much, but in 2005 when katrina hit, it was $500/oz. I don't think it's the only thing a person should own, because it will ebb and flow against other asset classes. I'm more apt to hold it now while the world figures out what's going to happen next.
The world is going through a painful realignment right now. There are massive conflicts shutting down the means of sustaining life all over the globe, and that's gonna produce some wild market movements. Europe and asia are at risk of running out of oil, gas, and food, Africa food, oil, and gas, America fertilizer and food. It's good to keep a foot on the dock with some precious metals.
I was stunned to find out we're a net importer of food. How tarded is that? Our biggest source of imported food is Canada, Mexico, and the EU. And we're not doing any of those places any favors right now between tough talk on tariffs and blowing up every source of energy going into Europe.