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How do they manage and operate index funds issued by fund companies, and how do they invest the money together?
They mainly buy stocks according to the proportion of the constituent stocks of this index.

For example, the composition of an index is 50% for ICBC, 50% for Agricultural Bank and 200 million for the total fund, then the fund manager will buy 65.438+billion yuan for ICBC and Agricultural Bank respectively. Unless the index composition or proportion is adjusted, the fund's shareholding will not change.

Therefore, index funds belong to passive investment, and fund managers invest less resources and the corresponding expenses are lower.