Spot foreign exchange trading: also known as spot trading or spot trading, refers to a trading behavior in which both parties go through the delivery procedures on the same day or two trading days after the completion of foreign exchange trading. Spot foreign exchange market transactions are generally delivered within the same day or two working days, and generally delivered within the second working day after the transaction, such as London, new york, Paris and other markets. In the China-Hong Kong market, the Hong Kong dollar will be delivered on the day of spot trading against the US dollar, the next day against the Japanese yen, the Singapore dollar and the Australian dollar, and the third day, that is, the second working day after trading.