BRIEF-Standard & Poor's updates U.S. market cap guidelines, changes to U.S. indices

Feb 16 (Reuters) - Standard & Poor's:

* Standard & poor's announces update to the U.S. market cap guidelines and

changes to U.S. indices

* Standard & poor's - Joy Global Inc will replace Allegheny Energy Inc in the

S&P 500

* Standard & poor says effective today S&P 500 companies will be $4 billion or

greater in market cap

* Standard & poor's says new guidelines for market cap for S&P midcap 400 is $1

billion to $4.4 billion

* Standard & poor's says new guidelines for market cap for S&P smallcap 600 is

$300 million to $1.4 billion

* Standard & poor's says 'guidelines refer to a company's total market

capitalization, not its float-adjusted cap'

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