Vlispxpert's Underground

[$tockfather]

$TRIN- Arms Index Introduction

Also known as the TRIN or Short-Term TRading INdex, the Arms Index is a breadth indicator developed by Richard W. Arms in 1967. The index is calculated by dividing the AD Ratio by the AD Volume Ratio. Typically, these breadth statistics are derived from NYSE or Nasdaq data, but the Arms Index can be calculated using breadth statistics from other indices such as the S&P 500 or Nasdaq 100. Because it acts as an oscillator, the indicator is often used to identify short-term overbought and oversold situations. A moving average can also be applied to smooth the data. The terms Arms Index and TRIN are used interchangeably in this article.

I am going to go over this some more this weekend.

http://stockcharts.com/school/doku.php?id=chart_school:technical_indicators:trin