TO OPEN A LINK . . . COPY AND PASTE THE LINK INTO THE ADDRESS BAR OR SEARCH BOX OF ANY BROWSER Arbitrage occurs when an investor can make a profit from simultaneously buying and selling a commodity in two different markets. For example, gold may be traded on both New York and Tokyo stock exchanges If the market price temporarily diverges and gold becomes cheaper on Japanese markets, then an arbitrageur could buy in Tokyo and straight away sell in New York to make a profit it works best if you trade in one million-pound bundles