First of all, it needs to be clear that the money fund implements the T+ 1 transaction, that is, it buys on the same day, confirms the share on the second trading day, and calculates the income after confirming the share. Therefore, there is no income from buying money funds on weekends, and the income will not be counted until next Monday.
Secondly, we need to analyze the source of income of money fund investment. Monetary funds invest in short-term financial market instruments, such as the central bank's open market operations and time deposits of commercial banks. Therefore, the income of the money fund mainly comes from the short-term interest rate income during the holding period, and the income of these interest rates is announced regularly by the central bank, not determined by the day of the week.
Finally, we also need to consider the risk prevention measures of the Monetary Fund. When investing in funds, we must pay attention to unrealistic high-yield commitments. Due to the high security and liquidity of money funds, their yields will be relatively low, and there will be differences between different fund products. Therefore, it is necessary to choose suitable money fund products, pay attention to diversification of investment and avoid the potential risks of a single fund.
To sum up, whether the money fund buys on Friday is profitable depends mainly on the characteristics of the fund itself, not on which day of the week. Buying money funds can be an option for asset allocation, but you should choose carefully and allocate assets reasonably according to your investment objectives and risk tolerance.