Arbitrage is the simultaneous purchase and sale of an asset in different markets to exploit small price differences for a profit.
Understanding arbitrage
Arbitrage occurs when a trader buys a financial instrument on one exchange and immediately sells it on another exchange where the price is higher. This practice relies on market inefficiencies. In a perfectly efficient market, identical assets cost exactly the same regardless of where they are traded. In reality, slight delays in information processing or localized differences in supply and demand create temporary price gaps.
Traders who engage in this practice are called arbitrageurs. They monitor global markets to find discrepancies in equities and commodities. A company might have its shares listed on both the London Stock Exchange and the Australian Securities Exchange. Due to fluctuating currency exchange rates or local trading activity, the share price might differ between the two markets for a few seconds. Arbitrageurs buy the cheaper shares and sell the more expensive ones to capture the difference.
The profit margins on individual arbitrage trades are typically very small. To generate meaningful returns, traders apply this strategy to large volumes of assets. They rely on high-frequency trading algorithms to identify price differences and execute simultaneous trades in milliseconds. If the execution of either the buy or sell order is delayed, the price gap might close before the transaction completes. This exposes the trader to standard market risk.
Example
Fellow Elephants, imagine you are monitoring the global markets for agricultural contracts. You notice that a single ton of marula fruit is currently trading for $500 on the Johannesburg Stock Exchange. At the exact same time, a ton of marula fruit is listed for $505 on the Chicago Mercantile Exchange.
You immediately purchase 10 tons of marula fruit in Johannesburg for $5,000 and simultaneously sell 10 tons in Chicago for $5,050. The trades execute perfectly without any delay. You collect the $50 profit minus any transaction fees required by the exchanges. By buying and selling the asset at the same time across two different markets, you locked in a profit without holding the marula fruit or taking on long-term market risk.