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These observations were made tonight, Sunday.
I have seen what you are talking about.
Rik Rasmussen
Stock Analyzer mailing list moderator
http://groups.yahoo.com/group/stockanalyzer/
> -----Original Message-----
> From: jnk1997 [mailto:jnk1997@xxxxxxxxx]
> Sent: Sunday, July 20, 2003 10:25 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] Re: Yahoo caution
>
>
> Rik,
> I am sure you know this but others may not.
>
> When using Yahoo EOD data, in order to get full complete data you
> should wait until at least 3:00 AM Eastern time in order to download
> the previous days "historical" data. If you download historical
> earlier they may be gaps, that is some symbols may be updated and
> some not.
>
> Also, on the weekend I download the full prior weeks daily historical
> data again, in order to catch any data corrections CSI may have
> applied.
>
> Regards
> Jim
>
>
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Rik Rasmussen" <hrasmussen@xxxx>
> wrote:
> > I know some of you are using Yahoo data.
> >
> > In the Stock Analyzer we also use Yahoo data.
> >
> > I have just discovered a problem in Yahoo data.
> >
> > Example is QQQ. If you check the historical data for QQQ on Yahoo
> it should
> > be complete through Jul18th.
> >
> > Sometimes it is. But If I check it a minute later it might stop
> with JUL 16
> > data.
> >
> > Repeated checks get randomly alternating returns of those two
> situations.
> >
> > Also happens on NDX, and I am guessing could be happening on any
> call for
> > Yahoo historical data.
> >
> > I noticed this when another Stock Analyzer user reported a signal I
> was not
> > seeing on my chart.
> >
> > At this time I would be careful if using Yahoo data.
> > Rik Rasmussen
> > Stock Analyzer mailing list moderator
> > http://groups.yahoo.com/group/stockanalyzer/
>
>
>
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