Gann theory is one of the important technical schools in the stock market. Let me tell you something about Gann's theory.

Gann theory was put forward by Willian D Gann, the most famous investment master in the 20th century, combining his impressive achievements and valuable experience in the stock and futures markets. It is a unique analysis method and market measurement theory established through the comprehensive application of children's science, mathematics, religion and astronomy.

Gann's theory mainly includes:

(1) Gann's Twenty-One Trading Rule. Investors must operate according to a set of established trading rules when trading, and cannot buy and sell at will and blindly guess the development of the side market.

Gann's twenty-one trading rules are as follows:

(1) Every time you buy or sell in the market, the loss shall not exceed one tenth of the capital;

2. Set up a stop loss position at any time to reduce possible losses when buying and selling mistakes;

③ Never buy or sell excessively;

(4) Never let the positions held turn from profit to loss;

Never go against the market. When the market trend is not obvious, you would rather wait and see outside;

⑥ If in doubt, close the position and leave the field, be firm when entering the field, and don't enter the field when hesitating;

⑦ Only in an active market. Not suitable for business when business is light;

(8) Never set the target price to enter or leave the market, avoid entering or leaving the market at a limited price, and only obey the market trend;

Pet-name ruby if there is no proper reason, don't close your position, you can use take profit to protect your profits;

Attending after winning Lien Chan in the market, you can extract some profits for a rainy day;

_ Don't expect dividends and interest when buying stocks;

_ When the business loses money, gamblers are forbidden to increase the price to reduce the cost;

_ Don't enter the market because of impatience, and don't close your position because of impatience; ___

_ Willing to lose rather than win, quit. Don't do business that pays more and earns less;

_ Don't cancel the stop loss when entering the market;

_ Do more mistakes, wait for opportunities when entering the market, and don't buy and sell too closely;

_ Be free to be short, not just unilateral;

_ Don't absorb because the price is too low, and don't short because the price is too high;

_ Never hedge;

_ Try to avoid the pyramid being overweight when you are uncomfortable;

(1) Avoid changing the trading strategy of the stocks held at will without justifiable reasons.

(2) Gann's periodic theory. Gann believes that the cycle of stock market operation includes: short-term cycle, medium-term cycle and long-term cycle.

(3) The space-time view of Gann's theory. Gann perfectly combines time and space in stock trading through Gann Circle, Gann Spiral Square, Gann Hexagon and Gann's "Wheel in Wheel".

(4) Gann's wave law. The volatility or inherent periodicity of the market comes from the multiple relationship between market time and price. When the frequency of internal fluctuations in the market is multiple to the frequency of external market driving force, there will be a * * * vibration relationship in the market, which will have a huge upward or downward effect on the market.

When investors use technical analysis tools to judge the stock price trend, they should follow the small cycle and obey the big cycle, and then use the trend to use technical tools.