Tian Tian Fund is a fund agency under Oriental Wealth Co., Ltd., which sells OTC funds, so you can't buy etf funds. If it is a newly issued etf fund, you can subscribe on Tian Tian Fund. Etf funds are listed and traded on the stock exchange, and investors need to open fund accounts or stock accounts on the brokerage platform for trading. At present, Tian Tian funds can trade etf-linked funds.

Etf fund is a kind of fund. It tracks a specific index and builds a portfolio by buying some or all of the stocks of the index. The purpose is to make the change trend of this portfolio consistent with the index, so as to obtain roughly the same rate of return as the index. Index funds pursue market returns. Etf funds belong to on-site funds, which are traded on the stock exchange. Like stocks, ETF funds are traded at real-time market prices, following the principle of price priority and time priority.