Bollinger Bands

Definition:

Plus or minus two standard deviations where the standard deviations are calculated historically in a moving window estimation. Hence, the bands will widen if the most recent data is more volatile. If the prices break out of the band, this is considered a significant move.

Investing Essentials


Copyright © 2011 Campbell R. Harvey, Professor of Finance, Fuqua School of Business at Duke University

Term of the Day

Post

Particular place on the floor of an exchange where transactions in stocks listed on the exchange occur.

Subscribe to the Term of the Day via email Get the Term of the Day in your inbox!


Create your free portfolio