* The volume % change you find on the marketsmith chart when you press the mouse over it
is currently being calculating based on "vol % change based on the full days average volume". (ie not based on avg volume for the same time of the day, as it did before.)

The "new" wrong calculations startet 01.03.12

* The volume % change you find at investors.com and on lists in marketsmith, are 20 min delayed, BUT
are calculatet based on average volume for the same time of day.

It is therfore clear to me that it is only a programming fail.
I really Hope you could pass this along to the programmers at marketsmith.
I know that there are many of us marketsmithers that rely on the "volume % change for the time of day" tool.

If marketsmith has changed the tool, from being "volume %change fort the time of day" to being "volume %change for total avg volume".
I would like to be notified.

Kind regards.

What I would lie to see is the rate of change projected to the end of the day v the volume from  day before like I think IBD does it. Perhaps you are saying the same thing? For example, if we are two hours into the trade day then we are 2/6.5=.30 into the trade day. What is .30 x yesterday's volume for the whole day/actual volume in the first two hour of trading  eg. a siplified example would be

Data--yesterday s volume =250000   todays volume 90000

first 2 hours of trading as a % expired of the whole trading day x yesterdays trade =.30 x 250000=75000

first first 2 hours of todays actual trading volume/ estimated first two hours of yesterdays trading volume--

90000/75000=120% ie todays volume is and estimated 120% of yesterdays volume or a rate of change running 20% higher in the first two hours of trading.

Right now I think what you see is what todays volume is as a  % above or below the 50 dma volume projected to the end of the day.

Since we can sceen for stocks with volume up from the day befor the information is in the programming somewhere. We can get it from a list but MS should clarify in the chart legend what we are seeing in the price action when we hover over it with the mouse.

What am I missing here? Do they have it right or wrong? I talked to guy in the MS technical group in the fall of 2010 and he said the stock lists calculate vol% change as I want it but the price change tool does not .It is based on average daily volume.

MS tell us for sure what you are doing here and how it compares with what we see at Investors.com

Reply to "se_swadley" post:
"Right now I think what you see is what todays volume is as a  % above or below the 50 dma volume projected to the end of the day"

This is what I want.
Up to 2012. This was also how volume % change was calculated.

My question is therfore:
Today: When you use youre mouse over a daily chart and on the last price bar of lets say BIDU.
Are the volume % change you see in the yellow box,
calculating the days intraday volume %(1hour into the day)

As a % above/below 50dma volume, projected to the end of the day
OR
a % above/below the full 50dma volume.

1Hour into trading these are the results:
Projected to the end of the day: +51%
against the full 50dma vol: -67%

I used to get the projected volume, wich is the only meaningful one to use.
But now I get the volume calculated against the full 50dma volume, wich is only relevant late on the day.

This changed on the 3. January 2012.
Is this happening to you also? Or could it be that somehing is wrong with my settings.

Kind regards

thavdahl

I think it is projected to the end of the day. At 9:50 PDT MS shows vol % change as -3% with absolute vol reported so far during the day as 2575400 but ADV is 5772700 or about 1/2 of ADV out so far today. The math in the programming  is doing something other than turning a fraction into a simple %.

 I have something else to do right now, but we should ask MS support to have the programmers clarify this for us for sure and whether any change has occurred. If you don't do it I will submit a request over the weekend. We would get a response next week.

steve

se_swadley

I am now in dialogue with ms, and I will post their reply here.

Yes when you click on the chart it is the volume compared to the average on a full day.

In order to get the intra day %Vol change I use lists where you can see this column which is the equivalent of what you see on investors.com.

A bit annoying though that the list isn't updated, you have to switch to another list and then switch back to get updated values.