The extent to which the fund can lose depends mainly on the maximum withdrawal rate of the fund. However, there is little information in this respect, so I found a report for investors' reference. Owl team counted the data of fund products from 2002 to 20 18, and found that during this 17 period, the investment with the worst investment experience was roughly 1%, with possible losses of 62%, 5% and 44%. According to the above data, investors lose more than 60% of their investment funds at most.

Funds can be divided into broad sense and narrow sense. Broadly speaking, they refer to a certain amount of funds set up for a certain purpose, such as trust and investment funds, provident funds, retirement funds and so on. In a narrow sense, they refer to funds with specific purposes and uses. Usually, funds mainly refer to securities investment funds. The income of securities investment funds comes from the future, and the performance of the income is inseparable from the performance of the investment target market, which has certain risks.

According to different standards, securities investment funds can be divided into different types:

(1) According to whether the fund unit can be increased or redeemed, it 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.

(2) According to different organizational forms, it can be divided into corporate funds and contractual funds. A fund is established by issuing fund shares to establish an investment fund company, which is usually called a corporate fund; The establishment of fund managers, fund custodians and investors through fund contracts is usually called contractual funds. China's securities investment funds are all contractual funds.

(3) According to the different investment risks and returns, it can be divided into growth funds, income funds and balanced funds.

(4) According to different investment objects, it can be divided into stock funds, bond funds, money market funds and futures funds.

Closed-end fund:

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.