What Is the Arms Index (TRIN), and How Do You Calculate It?

The Arms Index (TRIN) is a tool that analyzes the market by looking at the number of advancing and declining stocks, and their trading volume. Based on this analysis, you can build an efficient short-term trading strategy for stock indexes.Since this tool is an oscillator, it helps traders spot short-term imbalances in the market. It finds moments when the market is overbought or oversold, signaling an opportunity to open trades within a few-day time frame. In this article, we’ll explain t