Downgrade Doom? Stocks Fund Managers Might Sell

As bond-fund managers consider repricing risk in their portfolios following the unprecedented downgrade of U.S. debt by Standard & Poor's, will they have to dump companies with a low credit rating?

With data from Capital IQ, compiled a list of 21 firms in the S&P 500 that are rated BB- (junk) or below. Here is a look at those companies.

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