Both will do. Investors who do not have enough investment experience and too much time are more suitable for OTC index funds. Investors with certain investment experience, more time and more frequent operations are more suitable for OTC index funds.

On-site refers to the funds traded in the stock exchange, and it is necessary to open a stock account. Off-exchange refers to the funds traded outside the exchange. Generally, funds can be purchased through third-party platforms, banks and other channels.