Volume?

[Phil <rhodes@xxxxxxxxxxxxxx>]

   I have been thinking about volume lately, and it seems that volume in a
strong trend decreases when the trend is about to reverse?  Like in an
Elliot Wave 5 volume is usually lower than earlier in the move?   Also on
retracements of a strong trend, volume ususally is less?  So I was
wondering first, am I correct in my thinking of volume?  Second, what are
some of the best volume indicators to use to show this?  It seems to me
that volume may help in showing a trend is getting close to ending and also
help in showing if move is a retracement in a trend or a new trend?   I am
mainly talking about futures?  The main thing I am looking at is how can
one help to show when a strong trend may end and not just be a retracement?

  Any info on this and how anyone uses this would be helpful!

 Also info on open interest?  How can that be used?

   Thank You,