Granville's New Key to Stock Market Profits

In this remarkable stock market study, one of Wall Street's best known market analysts reveals a new technical tool he developed for gauging the pulse of the trading cycle.
Called the On Balance Volume Theory, this tool tends to fill in some of the conspicuous voids in the famous Dow Theory—especially the lack of discussion and use of stock volume figures.
As straightforward as a set of bridge rules, on-balance volume (OBV) denotes each buy and sell signal so that a trader can follow them...