What is a narrow index fund?
Corresponding to the broad base index is the narrow base index, that is, the industry index. The fund corresponding to each industry index must also contain more than ten constituent stocks. However, these constituent stocks must correspond to constituent stocks of the same industry. For example, the liquor industry index is an index composed of stocks dealing in liquor selected from the Shanghai and Shenzhen 300 Index and the CSI 500 Index. Its constituent stocks are mostly 10 liquor industry stocks, which shows that the liquor industry index not only limits the number of constituent stocks, but also limits the industry. Non-liquor stocks cannot be included in the liquor industry index.