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OK,
I gather the "% ratio of market capitalization of the top 100 pool" is the
weight they put on their web-site, right?. But If I apply the weight to the
price and add all of those up, I get figures in excess of 3000. There's got
to be more to it than that....
Tom
-----Original Message-----
From: Lawrence Chan [mailto:stnahc@xxxxxxxx]
Sent: Saturday, May 04, 2002 5:34 AM
To: Tom Nielsen; omega-list@xxxxxxxxxx
Subject: Re: NASDAQ 100
The calculation method is in the site as well.
The idea in abstract is pretty simple -
1. calculate the market capitalization of all the NASDAQ symbols
2. rank them and pick out the top 100
3. calculate index based on the summation of the
price of a symbol and the % ratio of market capitalization of the top 100
pool.
Due to the cost of maintaining a dynamic list of top 100, step 2 is
only done every month end and top 100 are chosen and then stay there
until next round of ranking. The bottom of the top 100 got rotated
out pretty frequently :)
Remember that the top 10 stocks account for more than 70% of the weight
(off my not so good memory) :)
Lawrence
--- Tom Nielsen <tnielsen@xxxxxxxxxxxxx> wrote:
> Hello list,
>
> does anyone have - or can point me to - an example of how the NASDAQ 100
is
> calculated? I can find the weights on NASDAQ's site, but so far I have
been
> unable to dig up an explanation of the mechanics of the thing. Any help
> would be greatly appreciated.
>
> Tom
>
=====
Lawrence Chan http://www.tickquest.com
Transform market data into opportunities
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