This is a translation of Welkin's Advanced Volume Study Indicator originally written for ThinkOrSwim. This version is simpler than Welkin's and attempts to streamline that basic functionality for beginners to Volume Spread Analysis.
This can be used to replace the built-in volume bar with a more advanced version that is designed to facilitate Volume Spread Analysis. The basic idea is to clearly call out areas of high and low volume that help a trader determine where to "Smart Money" may be attempting to move the market. Volume is an incredible powerful tool for the retail trader; learn how to use it.
Grey bar are Below Average volume .
Blue bars are Average Volume , from a 20sma of volume .
Orange bars are 2-sigma (or 2 standard deviations) above average.
Magenta bars are 3-sigma (3 standard deviations) above average.
The plotted lines represent these levels.
Yellow bars have relatively higher volume compared to the previous bar.
The study can also apply these same colors to the price candles themselves, as well as showing buying and selling pressure of the volume bars.