Save money on a fixed date every month. After a certain period of time, compare the invested principal (including subscription fee) with the total market value of the fund held on that day (the total market value fluctuates every day) and get a rough profit and loss. The profit and loss can only be roughly estimated and cannot be accurately calculated. For example, the total market value of the fund you see today is higher than your cost 1 1,000 yuan, but if you really redeem it tomorrow, it is almost impossible to really make a profit 1 1,000 yuan, and it may be less than 1 1,000 yuan, unless your fund rises by one or two percentage points or even more tomorrow. Under normal circumstances, the total market value will increase by 1.5%-2% to at least break even.

The unknown price method is used in fund trading, that is, when buying an open-end fund, you buy it with a certain amount, that is, you want to buy a fund of 654.38+10,000 yuan, but I don't know how many copies you can buy and how much each one costs for the time being. When you sell funds, your share is certain, that is, when you sell, you sell 5000 funds, but you don't know how many these funds have been sold for the time being. But this price is usually announced at night.

I don't know how much these funds sell per share. For example, yesterday, the total market value of the fund earned 2%, and today it may have fallen by 3%. Then, the calculation of the redemption rate of fixed investment is very complicated, and different rates are divided according to the holding time, so you can't calculate the specific profit and loss, so you can only estimate it. The specific rule is to submit the application before the trading day 15: 00, and take the net value of the fund on that day (calculated after the market closes at 15: 00) as the transaction price; If it is submitted after the trading day 15: 00 or on a non-trading day, the net value of the fund on the following working day shall be taken as the trading price.