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Hello,
Differences may be because one source is adjusting for dividends while
the other is not. AmiQuote/Yahoo is adjusting by default for splits and dividends
but you can turn adjustment off by editing Formats\aqh.format file (using the notepad)
and removing ADJCLOSE field.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "flintox" <flintox@xxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Thursday, August 05, 2004 7:34 AM
Subject: [amibroker] Yahoo EOD data not always correct ?
> Hi
>
> Apologies if this topic has been discussed before - I have searched
> through the archives but there are so many posts regarding Yahoo
> that I have not been able to find anything on this particular issues
> amongst the hundreds of posts.
>
> I am downloading EOD data from Yahoo to an ASX 200 group on a daily
> basis and I am also using another source to download all ASX data on
> a weekly basis (ie. I download EOD data but it is only available to
> download at the end of each week so is no good for daily trading).
>
> I have noticed discrepancies in quotes between these sources. I
> also have some old Bourse data and used this to make a comparison to
> see which source seemed to be incorrect - it appears that Yahoo is
> incorrect sometimes. Sometimes it can be 5 cents or more difference.
>
> On another note, I also notice that Yahoo seems to use 4 (or more)
> decimal places for a quote eg. open = 9.1254 - should I somehow be
> rounding this to 2 decimal places?
>
> Many thanks for any feedback on this.
>
> Sally
>
>
>
>
>
> Check AmiBroker web page at:
> http://www.amibroker.com/
>
> Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
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