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Hi,
I have done such indicator based on Volume and Price movement.
For down leg A - B calcualte the difference between total up/down 
volume =V1. Divide V1 with price change A - B = Leg1Val
For current up leg B - C calculate difference between up/down volume 
=V2, Divide V2 with price change B - C = Leg2Val.
Plot Leg1Val/Leg2Val.
Best Regards
Leif
--- In amibroker@xxxxxxxxxxxxxxx, "dom1_1998" <dominick@xxxx> wrote:
> Hi Eugene:
> 
> I don't believe there's anyway of knowing if the number of people
> trading an issue is increasing, unless news came out.   It isn't 
that
> unusual for someone to machine gun 10 or 20 100 share lots to try to
> get a movement going in a particular direction like breaking support
> or a resistance line.
> 
> You could just as well see the increase or decrease in volume by
> comparing 1,5 or 10 minute price bars with the volume bars.  You 
could
> watch the speed of trades on a time and sales chart.  You could 
easily
> see those machine gun 100 share lots appear at crucial points on the
> price chart.
> 
> One helpful way would be counting the number of trades,(not
> shares),going off at the bid and at the ask to determine future
> direction. Or just the total trades listed as a volatility 
indicator.
> Even better would be having those options for different time bars.
> 
> But in the end, trading just a few liquid stocks and contiunually
> watching their time and sales is the best way to know their
> characteristics.
> 
> JMO,
> 
> Dominick
> 
> 
> 
> 
> > 
> > Basis for index:
> > 
> > 1. The number of people trading a particular instrument is pretty 
much
> > the same.
> > 2. when the prospect of a move is due more people trade the 
instrument.
> > 3. Increased people causes increased price movement.
> > 4. Comparing the speed of the movement would give an indication 
of the
> > number of people trading the instrument. speed of movement would 
be
> > calculated by dividing difference between high/low pivot to its
> > current price would give the current velocity of movment
> > 5. Comparing this velocity to a previous move would give a decent
> > basis for estimating the interest in the security and the 
prospect for
> > further increases/declines.
> > 
> > Anyone has any thoughts along these lines or tried something 
similar?
> > 
> > Thanks
> > 
> > Eugene
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