If you don't already know, Warren Buffet shared with investors, his 2006 Berkshire Hathaway portfolio today. The list only contains companies that make up at least $700 million worth of investment in his portfolio. New additions for 2006 were Johnson & Johnson (JNJ), Posco (PKX), Conoco Phillips (COP), US Bankcorp (USB) and Tesco (a British grocer)
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