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I've said it before and I'll say it again: You guys are living in a dream
world if you think that *any* real-time feed is even *close* to what you'll
get if you download or purchase historical data.
I challenge those who think that real-time and historical tick data are
similar to run some experiments and investigate the situation. Don't
believe me! Check it for yourself. Save your tick data and then go get
some "refresh" or historical data somewhere. Check the tick counts, check
the opening price, see what you find.
You think your broker's data is more accurate than yours? Fine. Check your
real time feed (any feed) against the quotes your broker shows. Are they
the same? Are they ever going to be the same? If not, what does this mean
about your system that calculates entry points to the tick?
Look: the question here is one of *fact*, not opinion. Experiment for
yourself and see what you discover. Then, think about your technical
analysis in light of what you learn about the quality of your data.
Good trading,
The Omega Man
----- Original Message -----
From: William R Wood <wr_wood@xxxxxxxxxxxxx>
To: <omega-list@xxxxxxxxxx>
Sent: Friday, July 09, 1999 5:04 PM
Subject: RE: Prosuite 2000i problems
> To Folks who have no problems:
>
> Im curious about whether the satisfied customers have actually checked the
> accuracy of thier data. Do you call your broker and your data vendor and
> get them to read off price quotes, bid/ask changes and intraday volume
> numbers at random times during the day on several active stocks like INTC,
> DELL. And do you then call at the end of the day and get total tick
counts
> which you check against GS/Edit Symbol/Edit Data/Load Data - Trade Record
> 1Tick. Im not sure what you check for futures since I am a stock trader.
> But unless your intraday prices match your data vendor and your broker
with
> no delay you are not getting real time data. And unless your end of day
> tick counts are accurate within 1% you are not getting accurate data and
you
> do in fact have problems
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