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[amibroker] Re: IACI: Yahoo EOD Split not adjusted? Aug 08-2005



PureBytes Links

Trading Reference Links

My freeware QuotesTK application automatically "re-downloads" all 
historical quotes back to a user set date when a split occurs.  I'm 
working on allowing user defined stock lists but right now it is only 
the major indices.

http://www.piateksoftware.com/quotestk.html

Best,
David Piatek

--- In amibroker@xxxxxxxxxxxxxxx, "wavemechanic" <fimdot@xxx> wrote:
>
> When data is adjusted all data back to the first day are adjusted 
(not just the date of the split at which you see a gap).  Unless your 
downloader recognizes splits, etc. and then overwrites previously 
collected data (I don't know of any that do) it is necessary to 
delete all data and download all of the adjusted data from the first 
date.
> 
> Bill
> 
> ----- Original Message ----- 
> From: "chetan_gariki" <chetan.gariki@xxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Wednesday, July 18, 2007 8:02 PM
> Subject: [amibroker] IACI: Yahoo EOD Split not adjusted? Aug 08-2005
> 
> 
> > All,
> > 
> > I am not sure, but my impression is that yahoo EOD data is split 
> > adjusted if you download it after the date when split should have 
> > happened. But actually, if you look at IACI data; there is a 
split on 
> > Aug-08th 2005, but it is not shown in data (i downloaded the data 
even 
> > today but that doesnt change it); data shows an opening gap. So 
my 
> > question is, is this usual? or am i doing something wrong?
> > 
> > Aug 8th: Close 39.35
> > Aug 9th: Open  27.8
> > 
> > 
> > So, if this is usual then i guess yahoo data is atleast useless 
for 
> > backtesting. I hope that i am doing something wrong! (so that i 
can 
> > keep using FREE data).
> > 
> > thanks 
> > Chaitanya.
> > 
> > 
> > 
> > 
> > Please note that this group is for discussion between users only.
> > 
> > To get support from AmiBroker please send an e-mail directly to 
> > SUPPORT {at} amibroker.com
> > 
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> > 
> > For other support material please check also:
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> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> > 
> > -- 
> > No virus found in this incoming message.
> > Checked by AVG Free Edition. 
> > Version: 7.5.476 / Virus Database: 269.10.9/907 - Release Date: 
7/18/2007 3:30 PM
> > 
> >
>




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