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To: gbh who wrote (48347)6/8/1998 8:49:00 PM
From: Lockhart  Respond to of 61433
 
This constant change in market cap is how the S&P 500 average is calculated. Once a stock is in the index it is not traded based on the market cap, its influence on the index simply changes with its price.



To: gbh who wrote (48347)6/8/1998 8:49:00 PM
From: Michael Harb  Read Replies (2) | Respond to of 61433
 
<<June 1, 1998: The S&P 500 Index consists of 500 stocks chosen for market size, liquidity, and industry group representation. It is a market-value weighted index (stock price times number of shares outstanding), with each stock's weight in the Index proportionate to its market value. >> from S&P site.

(Remember, computers can do this very easily. Doesn't require too much of a fund manager's energy

Follow this link

proinvestor.com

mike


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