A technical analysis indicator that compares advancing and declining stock issues and trading volume as an indicator of overall
market sentiment. The Arms Index, or TRIN (Traders Index), is used as a predictor of future price movements in the market primarily on an intraday
basis.
The Arms index is calculated as follows:
TRIN = (advancing issues/declining issues)
(volume of advancing issues/
volume of declining issues)
Read more: Arms Index (TRIN) Definition | Investopedia
https://www.investopedia.com/terms/a/arms.asp
See also:
https://stockcharts.com:443/school/doku.php?id=chart_school:technical_indicators:trin
https://en.wikipedia.org/wiki/TRIN_(finance)
