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IBM (IBM) volatility at 25; shares up on Buffett purchasing 5.4% of company; shares near record high Nov 14, 2011 08:48AM
Berkshire Hathaway (BRK'B) volatility at record high, suggesting large risk Oct 3, 2011 03:17PM
Lubrizol (LZ) volatility flat into Berkshire Hathaway (BRK.B) acquisition for $9.7B Mar 14, 2011 07:41AM
Berkshire Hathaway (BRK.B) September volatility elevated at 31 Jul 1, 2010 09:18AM
Berkshire Hathaway (BRK.B) volatility flat at 26 Jun 29, 2010 08:29AM


Apr 26, 2010 08:35AM Berkshire Hathaway (BRK.B) volatility at 27 into shareholder meeting
Feb 4, 2010 01:47PM Berkshire Hathaway (BRK.B) options active on elevated volatility
Jan 22, 2010 01:37PM Berkshire Hathaway (BRK'B) Sept call volatility at 23, puts at 29 after 50 to 1 stock split