(1) if the investment time is longer than 1 years; It is recommended to buy index funds! But if you only invest for 3-5 years, it is only recommended to buy stock funds!

(2) I like Huitianfu. Personal opinion!

(3) the investment time is more than one year; You can intervene at any time. The sooner the better!

(4) there is no way to answer; If it is redeemed within one year; Buy money or bonds. The security of these two funds is relatively high.

(5) Pay attention to whether the dividend is invested or paid in cash. Pay attention to redemption; The cost of subscription.

(6) The formula for calculating the fixed investment income of the fund: m = a (1+x) [-1+(1+x) n]/x

M: expected income

a: the amount of fixed investment in each period

x: the rate of return in one period

n: the number of fixed investment periods (in the formula, N)