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I base my comment on Yahoo's own recent acknowledgement of frequent holes in their data, incorrect data, and late data. All of these reflect my own experience.
Yahoo says they are working on these problems and hope to have them corrected, but did not have an expectation of when that might be.
I am very glad we have them as a source of free quotes.
Their new web page format is nice on the quote pages.
Rik Rasmussen
Original Message:
-----------------
From: mrdavis9@xxxxxxxxxx
Date: Fri, 05 Sep 2003 10:41:42 -0500
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Re: new Yahoo web format
I have been reading that Yahoo's historical data comes from CSI and Chuck Rademacher has said that CSI is his main source of data. Does CSI have several different groups of historical data, some of which is not back adjusted and dirty, that they sell to Yahoo? Below, I have copied on of Chuck's comments about CSI data.
CSI has the advantage of having backadjusted and actual prices.
IMO, their data is also much cleaner.
Rik, perhaps you mean that the Yahoo servers are not the most reliable when you say that
Yahoo certainly is not the best source of data. Ron D
----- Original Message -----
From: Rik Rasmussen
To: amibroker@xxxxxxxxxxxxxxx
Sent: Friday, September 05, 2003 6:23 AM
Subject: RE: [amibroker] Re: new Yahoo web format
oops. Hit send too quickly.
Yahoo certainly is not the best source of data.
Rik Rasmussen
Best Charts mailing list moderator
http://groups.yahoo.com/group/bestcharts/
> -----Original Message-----
> From: Rik Rasmussen [mailto:hrasmussen@xxxxxxxxx]
> Sent: Friday, September 05, 2003 7:17 AM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: RE: [amibroker] Re: new Yahoo web format
>
>
>
>
> Rik Rasmussen
> Best Charts mailing list moderator
> http://groups.yahoo.com/group/bestcharts/
>
>
>
> > -----Original Message-----
> > From: bvandyke [mailto:bvandyke@xxxxxxx]
> > Sent: Friday, September 05, 2003 4:17 AM
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: [amibroker] Re: new Yahoo web format
> >
> >
> > Rik,
> > I was able to do my daily update as usual. It's interesting...yahoo
> > now has a footnote that their Mutual Funds are adjusted for
> > Dividends and splits at the bottom of an Historical page. However
> > when you check yahoo's historical quotes against other sources that
> > are well known for adjusting Mutual Funds for Dividends and splits
> > (e.g. Fasttrack), one finds Yahoo's data is still Not adjusted as
> > they claim for Mutual Funds.
> >
> > Bill
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