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Strategies & Market Trends : MDA - Market Direction Analysis
SPY 671.930.0%Nov 14 4:00 PM EST

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To: Moominoid who wrote (2948)12/28/1998 10:09:00 AM
From: James F. Hopkins  Read Replies (2) of 99985
 
David; They make it clear when they release the quarterly up dates
that the weighting for each company is in proportion to it's cap
percentage of the total market cap. They don't make it clear
how often they adjust the weighting between times, but I'm sure
they do. However I'm not sure about the base time period they use,
I just haven't found a very good official or detailed report on it
as to clear it up in my own mind.
Jim
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