Question: Is Bollinger bands a leading indicator?

Question: Is Bollinger bands a leading indicator?

Answer

When calculating the indicator, the smoothed values of historical prices are used. This means that Bollinger Bands cannot be called a leading indicator (in fact, there is no indicator that prices dutifully follow). However, note that the indicator solves a problem where the historical base is already nested. Therefore, to say that Bollinger Bands is late is incorrect.