You can redeem it at any time, but if you don't stop investing, you will continue to deduct money and continue to invest.

If the fixed investment is a fund with front-end charges, only the redemption fee needs to be deducted when redeeming;

If the fixed investment is a fund with back-end charges, the redemption fee and back-end subscription fee should be deducted when redeeming. The back-end subscription fee is generally 2% to 0% according to the length of years. The shorter the time, the more expensive the back-end subscription fee, which generally seems to be 0% after 5 years.