Hello David,
Thank you for writing to Yahoo! Finance.
I
understand your concern regarding the inconsistencies between the data
from
the Historical pages and the Yahoo! Summary page. I assure you I'm
always
glad to be of help.
Please be informed that US and Canadian historical
price and volume data
are sourced by Yahoo! from CSI.
If you need to
know the correct data or would like to request for
correction, we suggest
that you contact CSI Customer Service at:
support@xxxxxxxxxxx I understand
that this is very time consuming on your end but this is
the best
recommendation we can provide you.
Rest assured that we will follow up
your correction request to them. We
thank you for your patience and
understanding on this matter.
I hope this information has helped. If you
have any more questions or
need further assistance, feel free to write to us
again. We really value
and appreciate your continued support of Yahoo!
Finance.
----- Original Message -----
Sent: Saturday, August 04, 2007 7:26
AM
Subject: [amibroker] Why Yahoo free data
sucks
Take a look at this:
S&P close on Friday Aug 3rd was 1433, 17
points below the 200 day sma.
A technical trader would consider this
bearish, a breakdown, a possible
change of trend.
http://finance.yahoo.com/q?s=%5EGSPC
On
the historical quotes page (used by many free downloaders) the close
is at
1450, smack dab on the 200 day sma. A technical trader might
consider this
as an entry point looking for a bounce off the 200 day
sma.
http://finance.yahoo.com/q/hp?s=%5EGSPC
Makes
20-30 bucks a month for "clean data" worth every dollar.