Yes, stock exchanges, commodities, and currencies may all engage in arbitrage. It provides the trader with the potential to make money without danger. Take for example, reliance. The current share price stands at 2552.45 and 2551.65 for BSE and NSE respectively. A trader may make a 0.03% profit on each share by buying shares on NSE and selling on BSE. Commodities and currencies can be traded in a similar fashion. In currency arbitrage, there is term called Triangular arbitrage which represents the exchange of a currency for a second, then a third, and finally back to the original currency in a short period of time.