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Chuck,
Thanks for your comments.
If you have been trading for 40 years, and
youre still around...then I have to give some
credability to your findings :-)
Are you only trading stocks that tested with
some degree of success over a certian time period ?
(Eg; The last five years)
What is the criteria that you trade one and not the
other ?
thanks,
Gosub283
--- In amibroker@xxxxxxxxxxxxxxx, "Chuck Rademacher"
<chuck_rademacher@x> wrote:
> I think I approach this problem in a different way. I agree with
you on
> all three points (A,B,C) mentioned below. Why then, you might
ask, do I
> still want my system to look at all of the stocks in the universe?
>
> To me the answer is easy. I don't want to sit down daily, weekly
or monthly
> and portion the stocks out to nice little groups of "tradeable"
and "not
> tradeable". I don't think that I'm smart enough and I surely
don't have
> the time.
>
> However, I can write systems that will do all of this for me. In
order for
> these systems to do the intended job, however, they need to see all
of the
> stocks every day. I let the system decide whether the each
stock "appears"
> to be tradeable or not. By letting the system do the deciding, I
can be
> fishing instead of perusing charts. I've been trading for 40 years
and have
> yet to look at a chart to make any sort of trading decision. I
have looked
> at charts in order to transfer the look and feel of a chart to my
trading
> systems, but not for making actual trading decisions.
>
> So, I'm a single-click trader and I'm trading on behalf of several
hedge
> funds. My systems make a single pass through all of the active
stocks and
> decide which ones to trade and in which direction. I blindly
enter the
> orders before the market opens and I'm done (trading) for the
day. I spend
> the rest of the day doing research on how to improve my systems.
If the
> sun is shining and it's not too windy, I'm fishing!
>
>
> -----Original Message-----
> From: gosub283 [mailto:gosub283@x...]
> Sent: Saturday, March 29, 2003 5:28 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] TESTING THE UNIVERSE ?
>
>
> Hi everyone,
>
> Please bear with me on this subject because
> it's one which I have not yet found the answer
> and one which I am not an expert. This question is based
> on my current assumptions and is open to comment,
> correction, or debate.
>
> (This has been discussed before but, as an onlooker,
> I did not see a solution.)
>
> Here it is:
>
> What is the point of testing the whole universe
> of stocks with a trading system if it is generally
> understood that..
> A) Some stocks are just not "system" tradeable
> B) Some systems are best suited to certain markets.
> C) Some stocks have unique "personalities" which work
> with some trading techniques but not others.
>
> It seems to me that a test of the whole universe will give
> a squewed result because the performance of the system
> will be lowered by the "untradeables" and the ones with
> the "wrong personality".
>
> I have written filters which divide up the universe into two
> personality groups.(Good ones on the left...bad ones on the right)
> This has helped to narrow down the basket a little.
> But maybe there's another reason to test the whole universe
> that I m not aware of. Any comments on this ? (for or against)
>
> PS: I think the focus should be on devising ways to define
> and catagorize "personalities", then go exploit them.
> (Definately easier said than done) ;-(
>
> Cheers,
> Gosub283
>
>
>
>
>
>
>
>
>
>
>
>
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