It can be purchased at banks and fund divisions at any time during trading hours, and the fund position is not less than 60% of stock assets. Closed products have an agreed closure period, such as 3 years or 5 years. In addition to the initial subscription of new shares, the subscription cannot be made at other times. Some will be open for customers to buy at a certain time (usually a few days) in a fixed year, and not at other times. That's the back cover. Open products can be used at any time (during trading hours). Partial stock type is the main investment stock mentioned above, with a high position.