RE: [amibroker] Stock Pairs

["Jayson" <jcasavant@xxxxxxxxxxxx>]

<SPAN 
class=495522022-17022003>Dick,
The 
reason I choose to develop my own sectors is that it allows me to filter stocks 
that I would have no interest in trading and there for do not want included in 
the index calculation. For instance I do not trade stocks less than $10 or whose 
volume is less than 100,000 shares (50 day average) I also want to see a certain 
level of capitalization, institutional interest etc. AddToComposite allows me to 
create an index on stocks that meet my overall criteria. 
<SPAN 
class=495522022-17022003> 
The 
reason I opt to use Sectors over industry groups is that  many of the 
industry groups have so few components. A group of 3 stocks offer me little 
information. I am sure there are arguments to the other side of my reasoning but 
that is how I do it.
<SPAN 
class=495522022-17022003> 
As to 
your question of wild fluctuations are you referring to the purple line and the 
jump in aug-sept or are you talking about the barchart scatter lines? the 
problem is likely due to data holes. look at some stocks like JLN , there 
are many days where this stock does not trade at all. Perhaps this type of data 
is causing the problem?
 Jayson 
<FONT face=Tahoma 
size=2>-----Original Message-----From: hoierman 
[mailto:hoierman@xxxxxxx]Sent: Monday, February 17, 2003 5:19 
PMTo: amibroker@xxxxxxxxxxxxxxxSubject: [amibroker] Stock 
Pairs

<SPAN 
>Dear <SPAN 
class=SpellE>Jayson et 
all:
<SPAN 
>I like your 
idea on Stock Pairs but wondered why you didn&#8217;t use one of the sector or 
industry groups in the data base?  
Thanks to your help I have been using the <SPAN 
class=SpellE>AddComp feature to screen the 199 Industry groups in the US 
Stocks database (this approximates the IBD industry groups). This works fine on 
a number of groups but others have a wildly fluctuating chart. (see attached gif 
file).  This puzzles me as in 
looking at the stocks in these groups to see why the extreme fluctuations I 
normally can&#8217;t ascertain any one stock that causes it.<SPAN 
>  In this one (Shoes & Apparel) the 
only one that made a big move was Sacuny &#8230; but I don&#8217;t 
believe it should skew the data as much as the cart shows. <SPAN 
> If you or anyone else has a solution to 
this problem any suggestions will be most 
appreciated.
<FONT face="Times New Roman" 
size=2> 
<SPAN 
>R.E<SPAN 
class=GramE>.(Dick) Hoierman
<SPAN 
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