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I forgot to add that a PII 400 with 128M ram was used to collect data
and only 8 symbols were in the server portfolio. Sorry about that.
Wayne Mathews wrote:
>
> This post deals with the way TS 4 and TS 2000 handle data and it is not
> pretty. I have spent the last two weeks sorting this out and I am one
> disappointed user.
>
> TS2000: Here is a major change from TS 4. There is no 1 tick up or down
> volume. Well, that is not quite true. In the data window the up and down
> volume columns read the same values. The values are half the actual up
> or down volume but with no indication if it is up or down.
>
> A 2 or 5 tick or 5 minute chart shows different up or down volumes but
> most of these are not true values. Here is why. Lets look at a 2 tick
> chart and start with an up tick volume. It always reads in the up tick
> column. Say the next three are down ticks each at the same lower price.
> The first one reads in the down tick column BUT THE NEXT TWO READ IN THE
> UP TICK COLUMN!!! After the first down tick any down ticks immediately
> following at the same price will have the volumes put in the up column.
> Only if the price is lower from the immediately previous down tick will
> the volume stay in the down tick column. This biases the tick volume
> strongly to the upside and makes it worthless using tick volumes in
> indicators. Plot up and down volume on a 5 minute chart and see how much
> more the average up volume there is compared to the down volume. Knowing
> this pattern it is possible to write an indicator to move the misplaced
> down volumes back into the down column.
>
> Can someone tell me why Omega changed from the way these volumes were
> handled in TS 4? And they did it on propose according to a tech at
> Omega.
>
> More bad news!
>
> TS 4: I have made extensive comparisons of missed ticks between charting
> in TS 4 and two other charting services, Quote.com and BMI. I used BMI
> cable as the data feed for TS 4. Quote.com is over the Internet. BMI
> charting allows you to see and print Time & Sales. That is, each and
> ever tick (this can not be done in Signal cable but can in Signal
> Online). Quote.com has the same feature. Since BMI charting and TS can
> not run at the same time I used Quote.com as the reference. The numbers
> are per cent of ticks missed as compared to Quote.com. Since it seems
> more ticks will be missed the faster the market is for that stock I have
> listed the seconds per trade in parentheses. These numbers are
> different due to collecting BMI and TS data a few minutes apart
> (closing one charting program and opening the other).
>
> I am listing only part of the results I obtained but the pattern is the
> same as shown below.
>
> Stock BMI (sec/trade) TS (sec/trade)
>
> AAPL 1.7% (10.1) 10.3% (17.5)
> AOL 3.9% (3.2) 30% (1.9)
>
> (There were a string of losses for 20 seconds for AOL on BMI and if it
> were not for those the % would be 1%. I look for consistent patterns.).
>
> What the results tell me is that BMI is not the culprit for lost ticks.
> IT IS THE TS 4 SERVER!! Remember, all the tick results posted on the
> list are read on (or though) TS. If the TS server is at fault then
> comparing satellite feed with cable with FM is not getting at the
> problem since all those go through the TS server! I really can not
> believe it is that hard for paid, professional programmers to get this
> right. And why does not Omega advise us of these type limitations? Let
> me make it clear - BMI is as good a data feed as we are going to get for
> TS 4.
>
> I started to run the same test on TS 2000 when I discovered the down
> tick volume problem. Some testing is still possible and maybe an online
> feed may show to be best for TS2000. But I am so disappointed at this
> point that I do not have the energy to keep this up. I had such high
> hopes for TS2000 and it has not worked out. Bill Cruz told me Omega made
> all the changes from TS 4 to TS2000 because those are the features
> people wanted. I do not know who those people are but I hope THEY enjoy
> their changes.
>
> A very disappointed
> Wayne Mathews
>
> http://www.markbrown.com
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