Silver seen tracking copper prices higher

As a keen observer of the silver market, something recently caught my eye concerning the relationship between silver and gold (well-recognized) and silver and copper (less so).

Traditionally, silver prices have tracked gold prices fairly closely, which makes sense given that both function as monetary metals, and they often occur together in mineral deposits. The correlation between gold and silver since 1975 has been 0.8876. The 10-year correlation coefficient is 0.7511. However this year, the correlation has dropped significantly to 0.1959.

I suggest the reason is the fact that both copper and silver are being increasingly demanded in green energy applications. The closer correlation is seen below in the similar-shaped line graphs of 6-month spot silver and copper.