Fixed investment is not like buying a fund at one time. I think you know that.
For example.
In one year, a fund increased from 1 yuan to 12% at the end of the year. The net value at the end of the year is 65,438+0.12.
If you bought 5000 yuan at the beginning of the year, your share will be 5000 yuan (for the convenience of understanding, we don't include the handling fee).
If it is sold at the end of the year, it will be 5000× 1. 12=5600.
You have 600 yuan's profit, which is 12%.
Now let's talk about fixed investment.
You buy regularly every month. This is easy to understand.
But the market is changing ... for example, the net value in the first month is 1 yuan.
The second month may be 1.0 1 yuan.
It may fall to 0.9 yuan in the third month.
The third month ...
Fourth month ...
.....
The twelfth month is 1. 12.
In this case, it is also a year of 12% income.
However, you buy it every month, and the price is different every month.
So you spend the same amount of money every month and buy different funds. ..
You can buy 5000 in the first month.
You can buy 4950 in the second month.
You can buy 5555 in the third month.
...
You can buy 4464 in the twelfth month.
If you only look at the net value, there will be a profit of 12%. If you sell it before the end of the year. ..
Those stocks can be sold for 12% profit in the first month. But every month after that, because of the ups and downs.
Your income will be different. Those stocks bought in the twelfth month will have a profit of 0.
If it is easy to understand, increase 1% every month.
The less you buy every month, the less profit you make.
The first month 12, the second month 1 1, the third month 10 ... 0 of the twelfth month. ..
I don't know. Can you understand?