When the stock price reaches a stage high, it will lower its position and sell some. T+ 1 is a stock trading system, that is, the stocks bought on the same day will not be sold until the next trading day. "T" refers to the transaction registration date, and "T+ 1" refers to the day after the registration date. It can be said that lightening positions on rallies is a correct nonsense, because no one knows where the high point is. The judgment of the high point is based on subjective judgment, and the stock price may not reach the high point expected by investors.

Investing in stocks requires relevant knowledge, and only in this way can we make more appropriate judgments when investing in stocks. Pay attention to its recent trend before buying stocks, then choose to buy when the stock price is low, and then sell it for profit after the subsequent rise. When investing in stocks, you must measure your ability to take risks. If you don't want to lose the principal in the investment process, you'd better not invest in stocks at this time. In order to avoid the loss of the principal of investing in stocks affecting the normal life of individuals, users had better use their spare money when investing in stocks and keep a good attitude during the investment process.

Heavyweights are the shares of listed companies with huge total share capital, and their total shares account for a large proportion of the total shares in the stock market, so they have great weight. The ups and downs of heavyweights have a great influence on the stock index. Weights only make sense when calculating stock indexes. The stock index is calculated by the weighted method, and whoever multiplies the stock price by the total share capital has the greatest weight. Weight is a relative concept, which is aimed at an indicator. The weight of indicators refers to their relative importance in the overall evaluation. The total market value of Bank of China and Industrial and Commercial Bank of China ranks in the top two, and their ups and downs have a great influence on the index. A daily limit of small-cap companies may only bring 0.0 1 point to the index, while a daily limit of ICBC will increase the index by 60 points. This is a heavyweight.

From the development of China A-share market, it shows that the market investment concept has changed greatly. Large-cap stocks with weak performance in previous years are being accepted by market institutional investors and small and medium investors. The promotion of these varieties reflects the expansion of institutional investors and the sufficient funds in the market stage. We should also be soberly aware that due to the absolute influence of heavyweights on the index in the market, the continuous rise of their prices will also lead to a large value deviation. From the perspective of the company's development, its future development is more reflected in steady development, and the probability of leap-forward development is very low, while the price of A shares is about 30% higher than that of H shares in the same period. This also shows that ICBC in the A-share market is suspected of overestimation at least at the stage, and it is also possible for other institutions to pull up or open positions in stock index futures at the end of the year. Therefore, in the short term, especially in terms of the annual operating results, the author thinks that the operating results of ICBC and BOC are difficult to be greatly improved, so once the investment value exceeds or deviates from the staged investment value, the risk of falling back may occur at any time. Therefore, the lifting of heavyweights should be considered by multiple factors such as stages, stock price comparison and operating performance.