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For 4-11-01 DTN satellite has the first tick as 42.11 at
9:30:06. Using daily data it has the open as 42.16.
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
----- Original Message -----
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black">From:
Jerry Rehert
To: <A
href="mailto:realtraders@xxxxxxxxxxxxxxx";
title=realtraders@xxxxxxxxxxxxxxx>RealTradersDiscussionGroup
Sent: Thursday, April 12, 2001 7:19
AM
Subject: [RT] Data question
I have a question about my data
integrity. I have a system that buys and sells QQQ on the opening.
It's based on price and volume of QQQ and DIA. I get my EOD data from
Worden brothers and run the system in SuperCharts.
I assumed the open price on QQQ from
Worden Brothers was real. Yesterday 4-11-01 my purchase of QQQ through
Brown & Co. was at 42.20 on the opening. Worden brothers (and
Yahoo's) opening was 42.16. Brown & Co. says the opening was
42.20. Worden brothers can't explain the difference. The AMEX
website doesn't give the opening.
I figure the problem is composite opening
price vs. AMEX opening price.
Can anyone tell me what the AMEX opening
price of QQQ was 4-11-01 ? The price difference wasn't significant
but I question the integriry of my system based on backdata obtained from
Worden Brothers.
Any comments or
suggestions?
Thanks in advance.
<FONT face=Arial
size=2><<grehert@xxxxxxxxx>>
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