The Bollinger Band calculates stock price movements and provides a relative upper and lower price boundary. The Bollinger Bands indicator is based on a moving average that measures the medium-term trend of stocks based on the trading time frame you see. This indicator is known as the middle band of the trend. In the indicator Multi Period Bollinger Bands you can see the appropriate Bollinger band settings at any time frame. **Note: You can test the product without registering, but follow the registration steps for full access to use the product.