Index refers to the change index of the total price level of the market, which represents a group of stocks. Then calculate the weighted average of stock prices to get the value. For example, the SSE 50 Index is the weighted average value of 50 high-quality stocks in SSE, which can reflect the overall performance of these 50 stocks.

Index fund refers to a fund product that takes an index as the target, takes the constituent stocks of the index as the investment object, buys all or part of the stocks of the index and tracks the performance of the index. Generally speaking, index funds have less risk of stepping on mines.