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Home invest in investing living frugal what to invest in How did Standard and Poors decide that 500 was the appropriate number of stocks to track in the S&P 500?

How did Standard and Poors decide that 500 was the appropriate number of stocks to track in the S&P 500?

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The only thing I could find was that the number of securities in the index expanded from 90 to 500 in 1957. Considering the fluctuating amount of securities traded in the NYSE/Nasdaq, shouldn't the number of securities in the index change proportionately as well?



Submitted March 26, 2017 at 07:14PM by mike_vad http://ift.tt/2n6CC3C
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