Band Technique: A Study on Cardamom and Gold Prices in India Dr. P. Chellasamy Sreekrishnan P. Associate Professor M.Phil. Scholar Dept. of Commerce Dept. of Commerce Bharathiar University Bharathiar University Coimbatore Coimbatore Abstract This study estimates the commodity volatility through Bollinger Band technique. The main objective of the study is to estimate the volatility of closing price of cardamom and gold using Bollinger Band. For the study historical price