Arbitrage is when an asset (stocks, currencies, etc.) is bought in one market and sold in another for a higher price. An arbitrage is a transaction that involves no negative cash flow at any probabilistic or temporal state and a positive cash flow in at least one state.An arbitrageur is an investor who attempts to profit from market inefficiencies. Arbitrage is the buying and selling of assets, profiting from the price difference between the price paid to buy and the price at the time of sale. Arbitrage is when an investor purchases an investment property below market value and quickly sells or rents it for a profit. Arbitrage trading is a strategy that aims to take advantage of price differences across different markets. Arbitrage is a trading strategy that exploits an assets' price or information discrepancies for profit. These differences arise due to market inefficiencies.