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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 -
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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