All PMs fluctuate relative to the price of gold and the big boys have been manipulating the price of gold for quite some time.

$2000 an ounce makes them nervous. Gold got a bit over $2000 an ounce recently and the big boys started hammering it down.

The Federal Reserve buys huge quantities of gold. They don't like to pay any more for it than they have to.

https://www.birchgold.com/news/fed-gold-buying-may-be-the-policy-option-of-choice/

Over the past two years, central banks around the world stunned pundits by purchasing roughly 650 tons of bullion in both 2018 and 2019.