Here's a couple of charts showing gold in Foreign Currencies Gold Forex measured by an advance-decline line.

As can be clearly seen when the price runs the advance-decline line rockets upwards.

In other words the advance-decline line only rises when the majority of currencies measured in gold are rising strongly.

So it's a good indicator for strength in a rising price.

The first chart is for 22 major currencies & the second for a more broader 163 foreign currencies.

As can be currently see the indicator is rising strongly.
Cheers Nick