Arbitrage: a foreign exchange transaction in which different currencies and exchange rate differences between different foreign exchange markets are used to buy low and sell high, so as to gain profit difference. Divided into direct arbitrage and indirect arbitrage.

Arbitrage: Due to the different short-term interest rates in financial markets in different countries, investors transfer funds from low-interest countries to high-interest countries to earn spreads. Arbitrage trading needs to consider arbitrage costs.

Arbitragetransaction is one of the manifestations of arbitrage transaction in the foreign exchange market, which refers to a foreign exchange transaction in which arbitrageurs use the exchange rate differences in different places and currencies to buy low and sell high, and extract the profit from the difference. Due to the division of space, the reaction speed and degree of different foreign exchange markets to various factors affecting the exchange rate are not exactly the same, so in different foreign exchange markets, the exchange rate of the same currency may sometimes vary greatly, which provides conditions for arbitrage in different places.