Gold has the function of preserving value and is the best hedging tool. When the economy is bad, all kinds of funds naturally think of buying gold to preserve their value. In addition, gold is denominated in US dollars. Recently, the US dollar has depreciated sharply, so it is normal for gold prices to soar.
The price of nonferrous metals mostly depends on economic development. At present, the global economy has just bottomed out, so the demand for non-ferrous metals is still very limited.