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Dropped ticks will also affect minute based charts if the ticks that were
lost were at the start / end of the bar or if they constitute the high / low
of the bar. Missing ticks affects charts no matter how you look at them
(except day charts, unless you miss days too...). For tick based, it can
affect OHLC of bars as well as how many tick bars are formed so the
frequency of bars will be altered by tick loss, no question. Tick loss is a
fact of life in trading, key is to minimize tick loss and to expect it so
that your systems / indicators aren't going to fall down or become
inoperable if ticks start being missed. No accounting for a tick blackout,
except battery backups. Nothing you can do when the data vendor stops
sending data however. Best to be prepared for all contingencies and then
deal with what we're dealt.
Patrick White
----- Original Message -----
From: "BobR" <bobrabcd@xxxxxxxxxxxxx>
To: <realtraders@xxxxxxxxxxxxxxx>
Sent: Sunday, April 09, 2000 11:50 PM
Subject: [RT] Re: GEN: Chart Tip FOR BEGINNERS ONLY
> That is a great idea, however, do some checking to make sure your
> hardware/software/datafeed system is not dropping ticks. Some comparison
is
> needed to do this. For example, BMI sat feeding ProSuite loses 2% of the
> big snp ticks and 20 to 25% of the emini ticks. That will distort
> indicators based on tick bar charts.
>
> BR
>
> ----- Original Message -----
> From: Michael Ferguson <wl7bdn@xxxxxxxxxxxxx>
> To: <realtraders@xxxxxxxxxxxxxxx>
> Sent: Sunday, April 09, 2000 7:43 PM
> Subject: [RT] GEN: Chart Tip FOR BEGINNERS ONLY
>
>
> > FOR BEGINNERS ONLY: [I may be the only person who didn't know this.] I
am
> > quite sure the real pros already know it. I didn't like the gaps on the
> RTH
> > charts, so I started charting the globex 24 hours per day. I set up the
> > software so that the afternoon shutdown period is ignored, overlapped.
But
> > then I had long periods of spiderwebs (the overnight session) connecting
> the
> > RTH sessions. The simple solution is to use 25 or 50 tick, or whatever,
> > charts. These produce patterns that don't distort any indicators. To my
> eye
> > the charts are more useful. I love it when I am surprised by the
obvious!
> >
> >
> > Michael
> >
> >
> >
> >
> >
> >
> >
>
>
>
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