What role do commodities play in diversifying an investment portfolio?

Commodities can play an important role in diversifying an investment portfolio as they often have a low correlation with other asset classes like stocks and bonds. This means that when other investments in the portfolio are performing poorly, commodities may hold their value or even increase in value, providing a hedge against market volatility. Additionally, commodities are often seen as a hedge against inflation, as their prices tend to rise when the value of currency declines. By including commodities in an investment portfolio, investors can potentially reduce risk and increase returns. However, it is important to note that commodities can also be volatile and risky, so it is important to carefully evaluate their role in a portfolio and consider the potential risks and benefits before investing.