First of all, listed index funds can be bought and sold on the stock exchange like stocks, and can be purchased and redeemed in the market through securities accounts. This means that the opening hours of index funds are based on the trading hours of stock exchanges. For example, the trading hours of Shanghai Stock Exchange are 9:15-1:30 and 13:00- 15:00, and those of Shenzhen Stock Exchange are 9:/kloc. Therefore, as long as the exchange opens, index funds will open.
Secondly, for newly established index funds, the subscription time is usually limited, that is, the collection period. This period is usually within a few days, and you can subscribe for new fund shares by raising funds through fund management companies or consignment agencies. After the end of the raising period, index funds can be listed or redeemed in the market.
Finally, for cross-border index funds, that is, index funds traded in overseas markets, it will take a long time to conduct qualification certification and approval in all aspects. Generally speaking, these funds need to land in the domestic market through Shanghai-Hong Kong Stock Connect and Shenzhen-Hong Kong Stock Connect to facilitate domestic investors' investment. The specific time will depend on various factors.
In short, the opening hours of index funds will be affected by many factors, including product type, raising period, qualification certification and so on. However, as long as the index fund is listed on the stock exchange, it can be purchased and redeemed on the market, bringing diversified investment opportunities to investors.