On Balance Volume (OBV)

Author
Joseph Ensign Granville, B. Granville

Reference
Book Granville's New Strategy of Daily Stock Market Timing for Maximum Profit [Amazon.com]
by Joseph Ensign Granville, B. Granville; Simon & Schuster. ISBN:0133634329

Interpretation / Algorithm
On Balance Volume by Shaun Taylor [investopedia.com]
Description with math formula [FMLabs.com]
Technical Analysis A to Z by Steven B. Achelis [equis.com]
Technical Analysis Studies [prophet.net]

Product Implementation	Function / Formula / Script / Source Code
Genius Trader [geniustrader.org]	PERL Script - GT::Indicators::OBV [geniustrader.org]
TA-Lib [ta-lib.org]	C/C++ Source Code - TA_OBV()
Wealth-Lab [wealth-lab.com]	ChartScripts using OBV [wealth-lab.com]