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<FONT face=Arial
color=#0000ff size=2>Hi Krop,
<FONT face=Arial
color=#0000ff size=2>
<FONT face=Arial
color=#0000ff size=2>Yahoo data is adjusted for dividends. The ASX's
policy is they do not adjust for normal dividends. This is likely where
you're seeing the discrepancy on WBC. Yahoo data is also only to two
decimal places (cents). Since many Australian stocks traded at levels
under 10c you lose a lot of accuracy using Yahoo data.
<FONT face=Arial
color=#0000ff size=2>
<FONT face=Arial
color=#0000ff size=2>You can't, however, beat the price of the data
(free). But with certain things in life, you get what you pay for. I sure
wouldn't want to develop a trading system around Yahoo's data. For a
start, it would have a massive "population bias" - ie it only includes stocks
that are currently listed - not the ones that have been delisted (eg RMW, PPH,
ONE, HIH etc)
<SPAN
class=733082023-20052004><SPAN
class=733082023-20052004><SPAN
class=733082023-20052004><FONT face=Arial color=#0000ff
size=2>
Best regards,
Richard Dale.
Norgate Investor Services- Premium
quality Stock, Futures and Foreign Exchange Data for markets in
Australia, Asia, Europe, UK & USA -<A
title=http://www.premiumdata.net/ href=""><FONT
face=Arial size=2>www.premiumdata.net
From: Kropotkin
[mailto:backup_dayad@xxxxxxxxxxxx] Sent: Friday, 21 May 2004 4:07
AMTo: amibroker@xxxxxxxxxxxxxxxSubject: [amibroker] yahoo
data for ASX data downloader; yahoo
I'm confused about getting data from Yahoo - I couldn't get
Amiquote to give up to date quotations. For Australian stocks, up to date
charts are at au.finance.yahoo.com, but Amiquote seems to access
finance.yahoo.com only, which seems almost a day later. Likewise for a
chart of, say, RIO.L, on the London market, it's best to look it up on
uk.finance.yahoo.com to get most up to date figures. Also,
Amiquote only gives less than one year history for Australian & London
stocks. And another bizarre glitch is that it gives the wrong values for
WBC - e.g. about 16.56 where the actual stock is 17.00. The chart looks
exactly right, except it's all shifted down a few percent. Yet the
charts at finance.yahoo.com don't have this problem. I understand
there's some script based downloaders - are these well automated or is there
constant fiddling to keep them up to date? Will they solve these problems?
Of course, if using yahoo involves continual hassle, I'd rather know
now and I'll just buy data from Dial and Chart, as it's not too
expensive. (I'm assuming that the Dial and Chart downloader is
compatible with Amibroker & the daily update can happen automatically
- anyone know?)All feedback appreciated. Many
thanks,
Send BUG REPORTS to bugs@xxxxxxxxxxxxx
Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
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