I don't buy individual stocks...I use ETF's in my IRA. In doing research on the various PM ETF's I note that the recently formed GOAU is weighted about 30% in the large royalty companies. Theoretically, this should reduce the volatility of the fund compared to PM funds with smaller allocations to royalty stocks.
Here is the Morningstar public data available on this fund https://www.morningstar.com/etfs/arcx/goau/portfolio
Opinions welcome. Note: I do hold a reasonable allocation of physical for a retired person. Trying to get additional leverage on that investment in the coming Bull. :>)