The 50 stocks selected by the Hang Seng Index are the "best" among Hong Kong stocks, and their market value and turnover are among the best. According to statistics, their total market value accounts for more than 70% of the total market value of stock exchanges. In addition, according to the different circulation, each stock in the HSI will be given different weights to reflect the market situation more objectively. At present, the four stocks that have the greatest impact on the Hang Seng Index are HSBC Holdings (15.63%), China Mobile (13.02%), China Construction Bank (6%) and China Industrial and Commercial Bank (5.54%). In order to accurately reflect the market trend, Hang Seng Index Co., Ltd. will review the stock samples every quarter, and then make adjustments according to the actual market situation.
Hang Seng Index Futures is a contract designed according to Hang Seng Index. When investors buy a contract when the index is bullish, they will make a profit when the index rises and lose money when it falls. Selling a contract when it is bearish, the profit and loss situation is the opposite of buying. Hang Seng Index Futures implements the margin system. Assuming that the margin ratio is 10%, you only need 90,000 yuan to buy 1 Hang Seng Index futures with a hand value of 900,000 yuan. If the Hang Seng Index rises by 10%, it means that you have earned 90,000 yuan and doubled your income. But if the index falls 10%, you will lose all. In addition, stock index futures implement the T+0 system, which can be sold on the day of purchase, and the investment method is very flexible. After the end of each trading day, the futures company will settle the investor's account according to the settlement price of the day, and make up the deposit if the loss reaches a certain level.