These are two completely different concepts. Social security fund is the guarantee fund for future retirement, and it is best to insist on paying if you have the ability.

Fixed investment fund is an investment behavior, so investment will be risky.

Fixed investment funds are idle funds that are not used for a long time every month, which can be used for fixed investment to reduce investment costs and investment risks and achieve the purpose of obtaining better returns.

Therefore, it is better to pay the pension fund first, and then choose the fixed investment fund for the extra money.