Which foreign exchange index works well?

Technical index recommendation of bollinger band.

Bollinger Band is one of the most important technical indicators of foreign exchange. It has many functions, is very effective and convenient to use, and is very flexible to use. Therefore, it is loved by professional investors and is also one of the most commonly used technical indicators in the international financial market.

The Bollinger Band indicator is one of the commonly used tools for technical analysis of the stock market. By calculating the "standard deviation" of the stock price, the "trust interval" of the stock price is obtained. The indicator draws three lines on the graph, in which the upper and lower lines can be regarded as the pressure line and the support line of the stock price respectively, and there is an average line of the stock price between the two lines. Generally speaking, the stock price will run in the channel formed by the pressure line and the support line.