Arbitrage opportunities generally arise when an asset is undervalued in one market and overvalued in another. Traders exploit these discrepancies to secure a profit with minimal risk. For instance, if a currency pair is trading at 1.2000 in one exchange and 1.2050 in another, a trader can buy it at the lower price and sell it at the higher price simultaneously, thus capitalizing on the price difference.
This practice is common in various assets, including currencies, commodities, and indices. The speed of execution is crucial, as these opportunities can exist for only a brief moment due to market efficiency. Technological advancements in trading infrastructure have also enabled high-frequency trading firms to identify and act on arbitrage opportunities almost instantaneously.
Related concepts include market efficiency, price convergence, and the impact of transaction costs on the viability of arbitrage strategies. While arbitrage can reduce price discrepancies across markets, it also introduces competition among traders, ultimately contributing to market liquidity.