标签：Bollinger - 英国华人论坛

Bollinger Bands consist of upper and lower band with a moving average of certain period. The upper band and lower band is the difference using the standard deviation of price by multiplier. The default multiplier is x2 and the average defaul...英国华人论坛

The Bollinger Band theory is designed to depict the volatility of a stock. It is quite simple, being composed of a simple moving average, and its upper and lower "bands" that are 2 standard deviations away. Standard deviations are a statisti...英国华人论坛