http://www.articlealley.com en-us editorial@articlealley.com What is the TRIN anyway? The TRIN (an acronym for TRading INdex) is an indicator which helps to determine the breadth, or sentiment, of the market. Developed in 1967, it is often referred to as the Arms Index after it's author, Richard Arms. The... http://www.articlealley.com/article_196591_19.html 02nd August 2007 Origins Tape reading started in the late 1800s, where traders used a ticker machine that is very similar to the ticker you see scrolling across the bottom of major news and business channels today. Early tape reading involved watching price vol... http://www.articlealley.com/article_196590_19.html 02nd August 2007