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Lars:
The two highest rated services by a study made by
Futures were CSI (1) and Reuters (2), so it is not surprising that they show up
on Yahoo's supplier list. Since they both supply both historical and daily
data, although only CSI is listed by Yahoo as both historical and daily,
my guess is that Yahoo has both online backing each other up, and maybe
even cross checking between them in order to quickly catch errors. At
least that is what I would do if I were Yahoo.
Bill
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----- Original Message -----
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black">From:
<A title=Lars.Widlund@xxxxxxxxxxxxxxxxx
href="mailto:Lars.Widlund@xxxxxxxxxxxxxxxxx";>Lars Widlund
To: <A title=metastock@xxxxxxxxxxxxx
href="mailto:metastock@xxxxxxxxxxxxx";>metastock@xxxxxxxxxxxxx
Sent: Friday, June 29, 2001 10:52
AM
Subject: Re: CSI
Probaly Reuters supply them with Delayed quotes and CSI supply
them with historical quotes as Sergej wrote.
Lars
wavemechanic wrote:
<FONT
size=-1>Lars: I don't remember where I read
that CSI was the supplier, but FWIW both CSI and Reuters are now listed by
Yahoo as suppliers: <A
href="http://help.yahoo.com/help/us/fin/fin-06.html";>http://help.yahoo.com/help/us/fin/fin-06.html <FONT
size=-1>Bill
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----- Original Message -----
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black">From:
<A title=Lars.Widlund@xxxxxxxxxxxxxxxxx
href="mailto:Lars.Widlund@xxxxxxxxxxxxxxxxx";>Lars Widlund
To: <A title=metastock@xxxxxxxxxxxxx
href="mailto:metastock@xxxxxxxxxxxxx";>metastock@xxxxxxxxxxxxx
Sent: Friday, June 29, 2001 4:00
AM
Subject: Re: CSI According
to Yahoo their supplier is Reuters.
Lars
wavemechanic wrote:
Shashi: It is my
understanding that CSI supplies Yahoo and a number of other public
sites. It would be interesting if you could check a couple of
splits out on Yahoo and see if the same volume error exists, or did CSI
correct it for Yahoo and not for you. <FONT
size=-1>Bill
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----- Original Message -----
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black">From:
Shashi
Aggarwal
To: <A
title=metastock@xxxxxxxxxxxxxxxxxx
href="mailto:metastock@xxxxxxxxxxxxxxxxxx";>metastock@xxxxxxxxxxxxxxxxxx
Sent: Thursday, June 28, 2001
10:42 PM
Subject: CSI I think
that overall CSI is a very good source for data, as some other forum
users have indicated. But just be aware there is one major problem
with their stock data that I have discovered - the volume data is
incorrect if a stock has had a split. e.g. Say a stock trades
exactly 1 million shares every day and it closes today at 20 and
after market close it has a 2:1 split, then next day it starts
trading at 10 (or so). Now if you were to look at the historical
volume after the split, you will still see CSI showing it as 1
million shares, though it should be 2 million (as market cap
doesn't change after a stock split i.e. 1 million x 20 = 2 million
x 10).
Why is this important? In my Metastock Explorations, I use the
50day Mvg Avg of volume multiplied by price as a filter to exclude
small caps. Using the example given above, I will get an erroneous
result for 49 days after the stock split.
You can verify this yourself by checking the volume before and
after a stock split by calling up historical prices at Yahoo
Finance (their data provider is CSI); track several stocks about
to split starting today. I have done this a few times in the past
and their volume data after a stock split remained unadjusted for
the split (the last time I did this many months ago; its possible
they may have fixed this). I did call them many months ago to
bring it to their attention but the lady who answered was arrogant
and insistent that their data was the cleanest in the industry and
refused to entertain any doubts, so I just hung up.
Again, this only applies to stock volume data, post-split. I don't
have any experience with their mutual fund or futures data.
Shashi
============================================================================
=========
----- Original Message -----=20 From: Michael
Gilbert=20 To: <A
href="mailto:metastock@xxxxxxxxxxxxx=20";>metastock@xxxxxxxxxxxxx=20
Sent: Wednesday, June 27, 2001 1:34 AM Subject:
dial data & eurocurrency
If anyone is using dial data and has downloaded the
eurocurrency = symbol E1 ,any month, your data is ROUNDED
to 3 decimals. Dial Data cannot fix this. I was told that
they WILL = NOT FIX THIS. If you are trading off of this
data source, then GIGO applies.
If anyone has a moment, please share with me who has been
your BEST = source of reliable, clean Data?? (NOT THE CHEAPEST but
the BEST)
thanking you in advance
Michael
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