If the fund loses more than 20 points, you can add positions in batches. For example, after a stock loses 5%, it will add some positions, and after a loss of 10%, it will add some positions until the position is completed. Adding positions after stock losses will reduce costs. However, investors need to judge whether the fund is a high-quality fund first, and it makes sense if they can confirm that the high-quality fund makes up the position.

Fund broadly refers to a certain amount of funds set up for a certain purpose. It mainly includes trust and investment funds, provident funds, insurance funds, retirement funds and funds of various foundations. From the accounting point of view, capital is a narrow concept, which refers to funds with specific purposes and uses. The fund we are talking about mainly refers to the securities investment fund. According to whether fund units can be increased or redeemed, they can be divided into open-end funds and closed-end funds. Open-end funds are not traded on the market (as the case may be), but are purchased and redeemed by banks, brokers and fund companies, and the fund scale is not fixed; Closed-end funds have a fixed duration and are generally listed and traded on the stock exchange. Investors buy and sell fund shares through the secondary market. According to the difference of investment risk and income, it can be divided into growth fund, income fund and balanced fund. According to the different investment objects, it can be divided into four categories: bond funds, stock funds, money funds and hybrid funds.

Belonging to the trust fund, it refers to the investment fund whose scale has been determined before issuance, fixed within a specified period after issuance and traded in the securities market. Because closed-end funds are traded by bidding in securities trading, the transaction price is affected by the relationship between market supply and demand, which does not necessarily reflect the fund's net asset value, that is, the transaction price of closed-end funds has a premium and discount phenomenon relative to its net asset value. The practice of foreign closed-end funds shows that the transaction price often has the price fluctuation law of first premium and then discount. Judging from the operation of closed-end funds in China, no matter how the fundamental situation changes, the transaction price trend of closed-end funds in China has never deviated from the price fluctuation law of first premium and then discount. Open-end fund is one of the basic forms of fund operation in the world. Fund management companies can sell new fund shares to investors at any time, and also need to buy back their fund shares at any time at the request of investors. Open-end funds have become the mainstream of the international fund market. More than 90% of the fund markets in the United States, Britain, Hongkong and Taiwan Province Province are open-end funds.