Warren Buffett doesn't invest in gold. Now, the reason they prefer gold is because you can take gold anywhere, unlike stocks and real estate. When news broke about the coronavirus vaccine, the risk began to decrease, leading to a decline in gold prices and a decrease in the stock price of gold companies. Even so, the general rule among gold lovers is to keep between 5% and 10% of the value of their portfolio in gold.
There are other ways to own gold, such as jewelry, gold receipts, derivatives and funds, such as ETFs, mutual funds or shares of gold mining companies. To make his point of view on gold known in that letter to shareholders, Buffett imagined owning all the gold in the world at the time, 170,000 metric tons merged into a cube of about 68 feet per side. Knowing that gold is an asset but not a productive one indicates that gold can be a store of value, but not an investment.