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RE: [EquisMetaStock Group] Question for Richard Dale

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Title: Message
Richard,
 
This is no small error when you need the data on that stock.  Its pretty common on Yahoo and even some other "mainstream" data providers.
 
Best,

Larry Carhartt

MasterDATA
The Only Source for Index & ETF Composite/Breadth Reports, Charts & Data
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818-701-6686
 
-----Original Message-----
From: equismetastock@xxxxxxxxxxxxxxx [mailto:equismetastock@xxxxxxxxxxxxxxx] On Behalf Of Richard Dale
Sent: Monday, October 17, 2005 3:43 PM
To: equismetastock@xxxxxxxxxxxxxxx
Subject: RE: [EquisMetaStock Group] Question for Richard Dale

Note that there are differences between data providers.  Some adjust for corporate actions incorrectly.

Here's a great example with InterActiveCorp (NASDAQ:IACI) on Yahoo:
http://finance.yahoo.com/q/hp?s=IACI&a=07&b=1&c=2005&d=07&e=30&f=2005&g=d
 
First thing to note is that they showed an $11.25 cash dividend.  In fact, this was a capital event where IAC spun off Expedia.
 
Second thing to note is the "adjusted close" before and after the event.  If you use Yahoo data, the stock appears to have gapped down $12 whereas, if they had worked out the corporate action correctly. the "adjusted close" on 8th Oct should have been $28.10 _NOT_ $39.35.
 
Apparent small errors like this make a tremendous impact on a historical database... beware of data vendors that don't pay meticulous care with their data.
 
Best regards,
Richard Dale.
Norgate Investor Services
- Premium quality Stock, Futures and Foreign Exchange Data for
  markets in Australia, Asia, Canada, Europe, UK & USA -
 

From: Alexander Atreides [mailto:alexatreides@xxxxxxxxx]
Sent: Monday, 17 October 2005 7:46 PM
To: equismetastock@xxxxxxxxxxxxxxx
Subject: RE: [EquisMetaStock Group] Question for Richard Dale

Typically, the data provider will automatically take
care of conversions of previous data. That means you
may have to download a completely new data series and
probably delete the old data. Your provider may give
you instructions how to do this through your
downloader. Metastock does not provide any means of
time series conversions like splits, etc.
automatically. You have to rely completely on your
data provider.

Hope this helps, although question not addressed ot
me.

AlexAtreides

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