Short Term Trading Index (TRIN)

The Short Term Trading Index, also known as TRIN (Short-Term TRading INdex) , is a daily market breadth indicator.  The Short Term Trading Index was invented by Richard Arms in 1967 and thus is also referred to as the ARMS Index. 

Short Term Trading Index

The Short Term Trading Index, also known as TRIN (Short-Term TRading INdex) , is a daily market breadth indicator.  The Short Term Trading Index was invented by Richard Arms in 1967 and thus is also referred to as the ARMS Index.  It has also been known at various times as MKDS and STKS.  

 


Application of Short Term Trading Index

The index uses a formula based on NYSE (or Nasdaq) stock market data including number of advancing and declining issues as well as advancing and declining volume to identify short-term overbought and oversold market conditions. See TRIN for more usage of the Short Term Trading Index.


Related Terms