what is a good trin ratio 
a trin index below 1 0 is usually a bullish sign indicating that the market is advancing however it is important to understand the peculiarities of the trin formula because there are some circumstances where it can generate false signals 1the bottom linethe arms index also known as the trin is part of the galaxy of technical indicators used to measure and predict the movements of the stock market this indicator reflects the market as a whole and is used to predict when the overall sentiment of market participants is becoming bullish or bearish as with other technical indicators it is most effective when combined with other analytical tools 