Hello, what's the difference between an open loop and a rolling loop? The difference between periodic opening and periodic rolling is flexible and fixed. Regular open-ended financial management refers to funds that are open within a fixed period of time. There is a fixed open day for financial management, and investors can purchase and redeem at will on the open day. After the opening period, financial management enters a closed period, during which investors can't make any transactions. Periodic rolling wealth management products are more flexible and can be purchased by appointment at one time. If there is no redemption agreement, the maturity date will be automatically transferred to the next cycle, saving the trouble of buying again.