Bollinger Band indicators have different references. The main types are divided into high line, mid line and low line. Based on the three-line trend, the stock price trend is judged.

Generally speaking, if the three types of Bollinger Band indicators all show a downward trend, and the stock price is also between the middle and low lines at the same time, it can be concluded that the stock price has a tendency to fall.

If the three types of indicators of Bollinger Bands all show an upward trend, and the stock price is also between the middle and high lines, it can be concluded that the stock price is showing an upward trend.

The full English name of Bollinger Bands is BOLL, which is an indicator created by American expert John Bollinger based on statistical principles and applied to the stock market.

Usually, stock price fluctuations are constantly changing around a certain intermediate key point, such as moving averages, cost lines, etc.

The wiring indicator also reasonably applies the above-mentioned basic principles of the stock market and specially proposes a brand new concept: stock price channel.

It is judged that the specific fluctuations up and down the stock price channel will continue to change according to the rise and fall of the stock price.

It is worth mentioning that the stock price channel will have special variability, and sometimes it will be adjusted according to specific circumstances.

1. Stock price refers to the trading price of a stock, which is a relative concept to the value of the stock.

The true meaning of stock prices is the value of a company's assets.

The value of the stock price is equal to the earnings per share multiplied by the price-to-earnings ratio.

2. The most direct impact of exchange rate changes on stock prices is the stocks of companies engaged in import and export trade.

It is reflected in the stock price through its impact on the company's operations and profits. Its main manifestations are: (1) If a considerable part of the company's products are sold in overseas markets, when the exchange rate increases, the competitiveness of the products in overseas markets will be weakened, and the company's profits will be reduced.

Conditions decline and stock prices fall.

⑵ If the company relies on imports for certain raw materials and the products are mainly sold domestically, then the exchange rate will increase, which will reduce the company's cost of imported raw materials and increase profits, thus causing the company's stock price to tend to rise.

⑶ If it is predicted that a certain country's exchange rate will rise, then currency funds will move upward, and part of the funds will enter the stock market, and the stock market may also rise as a result.

Therefore, investors can make correct investment choices based on the above general impact of exchange rate changes on stock prices and changes in other factors.

3. As far as the stock market is concerned, in general terms, the factors that affect stock price changes can be divided into: individual factors and general factors.

1. Individual factors mainly include: the operating status of the listed company, its industry status, income, asset value, income changes, dividend changes, capital increase, capital reduction, development of new products and new technologies, supply and demand relations, changes in shareholder composition, main force

Institutions (such as fund companies, securities companies, QFII, etc.) shareholding ratio, performance forecast for the next three years, price-earnings ratio, mergers and acquisitions, etc.

2. General factors are divided into: external factors and internal factors.

Factors outside the market mainly include: political and social situations; major social events; major emergencies; macroeconomic trends and international economic trends; financial and fiscal policies; exchange rates, prices, and expected "news" or even "news" that are made out of nothing.

News" and so on.

Factors within the market mainly include: market supply and demand; trends of institutional legal persons and individual investors; trends of securities firms and foreign investors; exercise of securities administrative power; stock price policy; taxes, etc.