Money market funds are profitable on holidays. During holidays, money market funds will stop investing, 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. On holidays, money market funds will not trade, so there is no spread income, but the interest income of securities held by them still exists during the Golden Week. Therefore, the annualized rate of return of money market funds on the seventh day of holidays will drop significantly, but it will not be zero.