"Rollover by amount" in the personal account of China Industrial and Commercial Bank refers to the use of the funds obtained from all the products of the previous period held by the customers who have closed their positions, and at the same time, the products of the next period can be opened in the maximum amount, and the remaining funds (or margin) less than 0. 1 barrel will be returned to the customer's fund account (or margin account).

Account crude oil is a new investment trading product launched by China Industrial and Commercial Bank for individual customers. It only counts shares, does not extract physical crude oil, and buys and sells crude oil shares in RMB or USD. Account crude oil products are issued in installments, and information such as transaction start date, transaction end date and settlement date are set for each installment. Customers can buy and sell products during the trading hours from the trading start date to the trading end date. If there is still the balance of the product in the customer's trading account after the transaction, ICBC will handle the fund settlement for the customer with reference to the settlement price in the international market at the end of the transaction.