May 8, 2012 12:25PM Stocks with call strike movement; CLF AVP

Oct 13, 2011 07:14AM Stock with implied volatility below IV index mean; EK CLF

Oct 12, 2011 07:37AM Stock with implied volatility below IV index mean; CIEN CLF

Oct 11, 2011 07:28AM Stock with implied volatility below IV index mean; EK CLF

May 21, 2010 09:02AM Cliffs Natural (CLF) volatility at one year highs

Mar 24, 2010 08:09AM Cliffs Natural (CLF) volatility flat on sharp rally

Mar 16, 2010 12:49PM Cliffs Natural (CLF) volatility flat as shares trend higher

Feb 25, 2010 08:35AM Cliffs Natural (CLF) volatility flat at 55; shares near 16-month high

Feb 4, 2010 07:21AM Cliffs Natural (CLF) volatility flat into EPS and demand outlook