Bond funds, especially pure debt funds, have gained a lot during the Spring Festival. This is mainly because there are two sources of income for bond funds, including interest income and investment income.
During the Spring Festival, the bond market and A-share market are closed, but other markets may still be trading, so the income of bond funds depends on interest income and investment income. During holidays, the net value of bond funds will not be updated, but accumulated to the next trading day after holidays.