Do money market funds earn money on weekends and National Day holidays? A: Money market funds will stop investing on weekends and National Day holidays, but this does not mean that money market funds have no income during this period. Generally speaking, the income of money market funds includes interest on securities and deposits held and bid-ask spread income. During weekends and the National Day Golden Week, money market funds don't buy or sell, so there is no spread income, but the interest income of securities they hold still exists during the Golden Week. Therefore, the seven-day annualized rate of return of money market funds in Golden Week will drop significantly, but it will not be zero. Monetary funds are valued by amortized cost method, so the holding period income is still accounted for on Saturday and Sunday. Saturday and Sunday's income will be accumulated with Monday's income, which is reflected in the daily income of the fund on Monday. In case of holidays, do similar treatment.