Metals are tradable commodities on exchanges like LME, NYMEX, and Shanghai Gold Exchange. Trading commodities used to need expertise, money, and time; now, it's more accessible. Derivative trading via metal CFDs, e.g., gold, silver, platinum, and palladium, is trendy for speculating on their prices. Spot metal investing means swapping for currency; CFD trading provides leverage for gold. Platinum, palladium, and silver are vital for industry and jewelry. Platinum is highly volatile, palladium more industrially used.