The Arms Index (Trin Index): An Introduction to Volume Analysis
Finally it's updated and back in print! Get an indepth look at how volume--not time--governs market price changes. Describes Arms' short-term trading index (TRIN), a measure of the relative strength of the volume in relation to advancing stocks against that of declines. Also shows how to use Arms' own system to forecast the price changes of individual issues as well as market indexes.