13 Jul Bollinger bands
Posted at 15:53h
in
Bollinger Bands, developed by John Bollinger, are a technical analysis tool for stock trading established by John Bollinger in the 1980s. The bands are usually part of a volatility indicator that calculates the relative low or high of a security’s price with respect to past trades. Volatility is quantified using standard deviation, which fluctuates when volatility rises or falls.