Why Warren Buffett's billions in cash at Berkshire Hathaway is a bearish stock market signal Yahoo FinanceBerkshire Hathaway operating earnings soar 39% as Buffett's cash hoard swells to record $188 billion CNBCWarren Buffett backs Apple after firm sells millions of shares in iPhone maker The GuardianBerkshire Reports Strong Earnings and Formidable Cash Stockpile The New York TimesWarren Buffett's Talk With Shareholders: Cash Nears $200 Billion While Still High On Apple
