the word "blue chip" comes from western casinos. In western casinos, there are three colors of chips, of which blue chips are the most valuable, followed by red chips and white chips are the worst.

investors apply these jargon to stocks. In the overseas stock market, investors call the stocks of large companies that occupy an important dominant position in their respective industries, with excellent performance, active transactions and generous dividends as blue chips.

according to American standards, those with a market value higher than $1 billion are called large-cap stocks, and those with a market value higher than $1 billion are called mid-cap stocks.

A fund heavyweight stock refers to a stock that is heavily held by several fund companies and accounts for more than 2% of the circulating market value. In other words, more than 2% of this stock is held by the fund. The fund's heavy stocks refer to the stocks held by the fund in Shanghai and Shenzhen stock markets.

Generally speaking, the fund's heavy stocks will be pulled up at the end of the month, and the fund has always had the habit of pulling up its own heavy stocks at the end of every month, in order to get a better ranking in the industry and reduce the pressure of fund redemption. Moreover, the bonus and income of fund managers are also directly linked to the ranking.