06-16-2011, 11:09 PM
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#9 |
Join Date: Nov 2008 Location: Northeast U.S. Thanks: 373
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| Re: NYSE Up Vol Minus Down Vol Compared to SP Emini
Quote:
Originally Posted by rt-trader » Tradewinds,
You are probably aware of this, but just in case..
The S & P is a weighted index and the top 50 stocks comprise approx 50% of the index by weigh.
While its old see tx-0.org: Index Component Weights of Stocks in the S&P 500 for a general idea.
Basket activity in these 50 stocks may not move the NYSE Tick much, but will sure move the index and so ES. Of course the opposite also applies.
Cheers | Thank you. I was not aware of the details of the weighting. So I appreciate that info. I'll need to look into how I could get the raw data and process that myself. I need all the pieces of the puzzle I can find. Thank you for posting this info, because critical information is sometimes not readily available.
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