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--- In amibroker@xxxxxxxxxxxxxxx, "brian_z321" <brian_z321@xxx> wrote:
> 7. Advanced traders consider issues like survival bias, IPO's, name
> changes, fdata timeliness, custom classificaions etc.
> The list goes on and on.
> How the heck would an individual manage all of that, especially if
> you eventually want to cross supplier borders e.g. Worden data with
> Hemscott industry classification?
To clarify point 7.
How could any individual personally keep up with name changes etc and
find time to trade?
Everybody buys that info, including Yahoo, (Yahoo suppliers are
listed at their site).
The only exception might be alpha-techs who can quickly and easily
script up custom processes.
The sophistication of stock tracking varies between suppliers so if
you want more you pay more.
If you have specialist needs then you have to customise to some
extent, but your needs should drive the process e.g. don't worry
about sector classification until you develop an interest in sector
trading.
Special interest trading would be the only reason to manage any of it
personally.
In that case, you still have to get the basic info from somewhere;
buy it or scrape it from a site.
I don't know how many ways there are to go about custom management of
symbols.
Customising broker and industry lists is the basic starting point.
Brian.
> --- In amibroker@xxxxxxxxxxxxxxx, "avitar312" <avitar312@> wrote:
> >
> >
> > I just purchased AmiBroker today after evaluating it for the
> last 3+
> > weeks. It appears to me that it will do everything, without
> exception,
> > that I want it to do. Having said that, I think there are a three
> > challenges that face me that others may be able to help with.
> >
> >
> >
> > My first challenge is to develop a structure plan for the
> database.
> > The second is to populate it, and the third is to maintain it.
> Since I
> > am new to the program, I am hoping that some of you might respond
> with
> > any "lessons learned". I have detailed my approach below so that
> folks
> > can help me avoid potential pitfalls, if they are willing.
> >
> >
> >
> > Objective
> >
> > Obviously, the first question is "What do you want it to do?"
My
> > primary goals are to use Amibroker for back-testing systems and
then
> > implementing them. Additional details, in order of priority are:
> >
> >
> >
> > 1. To develop trading systems associated with stocks on
AMEX,
> > NASDAQ and NYSE;
> >
> > 2. To implement those systems on a daily and sometimes
> > intra-daily basis via AmiBroker;
> >
> > 3. Eliminate unnecessary cost associated with data
> collection;
> > and,
> >
> > 4. Automate data collection as much as possible.
> >
> >
> >
> > Background
> >
> > Often, it is difficult to answer someone's questions without
> > knowing their capabilities, so here's another list:
> >
> >
> >
> > 1. Moderate familiarity with programming (Jscript, Pascal,
VB);
> > 2. Reasonably up-to-date hardware ? multiple monitors, decent
> > storage capability and processor;
> > 3. Up-to-date software (XP, Office);
> > 4. Trading software (Amibroker, QCollector, and trial
versions
> of
> > AmiQuote, PowerScan);
> > 5. Subscription to eSignal for data feed; and,
> > 6. Cable connectivity ? up to T1.
> >
> >
> >
> > Data Structure Approach:
> >
> > I used the template developed by Rik Rasmussen in message #
> 107348.
> > Many thanks to you Rik for saving me time! I will continue to
> customize
> > the structure with additional categories, groups,
> sectors/industries. My
> > thought is that it will be a requirement to run back-testing
against
> > collections of stock, as well as entire exchanges, so it is best
to
> get
> > it organized to the nth degree. From what I can tell, creating the
> > structure isn't particularly time consuming ? associating
> > 1000's of stocks with that structure may be.
> >
> >
> >
> > Again, Rik's help saved me a lot of work, but I still have a
> > considerable number of stocks to add as well. It would seem that
> since
> > stock classifications are part of data you can pull from Yahoo,
> there
> > should be a way to automate this. If there is, I haven't found it.
> > Ideas anyone?
> >
> >
> >
> > Rik seems to imply that he developed a script to do this.
> > Unfortunately he can't distribute because he did it for a
customer.
> > Has anyone seen similar scripts out there? As you can tell, I am
> not a
> > big fan of re-inventing the wheel.
> >
> >
> >
> > Data Acquisition & Storage Strategy:
> >
> > This is a tricky part for me. I have already gathered
historical
> data
> > on approximately 8000 stocks going back on some as far as 1990. I
> pulled
> > this data (ASCII format) from eSignal using QCollector. The list
of
> > stocks came from the AmiBroker website. All information is on the
> local
> > hard-drive.
> >
> >
> >
> > I can import this information into AmiBroker using the Import
> Wizard,
> > but of course then I would have to associate any stocks from my
list
> > with the various groups. I am hoping that someone has a solution
for
> > automatically doing this.
> >
> >
> >
> > I wish that AmiBroker had these kind of lists compiled
although
> I can
> > understand the initial manpower required. Still, it would be a
great
> > jumpstart for folks and would allow them to get to work with the
> > software much faster.
> >
> >
> >
> > Once the two lists are merged, and all stocks are up to date,
> the next
> > phase is maintenance.
> >
> >
> >
> > Database Maintenance:
> >
> > From what I read, it seems to me that I can use AmiQuote to
keep
> > everything updated. Is this true? My understanding is that it
will
> pull
> > EOD information from Yahoo. That of course raises a few questions.
> >
> >
> >
> > 1. Since there seems to be a symbol difference (index symbols)
> > between Yahoo and eSignal, will there be problems that I need to
> address
> > now? Yahoo seems to be considerably less expensive as a data
feed;
> and,
> > while eSignal seems to have some great products, I'm really not
sure
> > it is worth the expense for my needs right now.
> > 2. If I decide on Yahoo as a data feed, using AmiQuote as a
> > go-between, will that support my objectives? Since historical
data
> has
> > been gathered I anticipate my future need as EOD data and intra-
day
> > data. (No I don't want intra-day data on all stocks, just those
on a
> > watch list.) Am I missing anything here?
> > 3. It seems as if Yahoo has some limits on downloading of
data.
> I
> > can't recall exactly what I read, but it seems to me that 200
> > symbols at one time was a limit. If I want to automatically
> download EOD
> > for 8000 stocks, will I have to do it in 200 symbol groups; or,
> perish
> > the thought, individually?
> > 4. If for some reason I need to stay with eSignal to avoid
> problems
> > from question #3, will I have to manually import the updated data
> each
> > day to keep the database in AmiBroker current?
> >
> >
> >
> > The bottom line here is that I want to spend the majority of
my
> time
> > working and systems and trading ? not doing administrative tasks.
If
> > folks have a suggestion for the best "lash-up" that will support
> > my goals, I'd really love to hear it.
> >
> >
> >
> > Conclusion:
> >
> > If you've read this far, I appreciate your determination ? I
> > know it was a novel! I felt it was important to lay it all out
> though so
> > that you didn't waste time trying to guess what I might need. My
> > hope is that your responses may answer some of the practical
> application
> > questions that face others as they get started with AmiBroker.
> >
> >
> >
> > Finally, if you're sitting on the fence about answering
because
> of
> > the number of questions, just pick one and go for it. Sooner or
> later
> > I'll get suggestions on all. I wouldn't expect anyone to go
> > through this piece by piece. Time is too valuable.
> >
> >
> >
> > Thanks to all, I look forward to working with you on this forum
in
> the
> > future.
> >
> > Ted
> >
>
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