shares of cf industries holdings inc cf inched 007 higher to 8599 monday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 061 to 411108 and dow jones industrial average djia falling 010 to 3389102 this was the stocks second consecutive day of gains cf industries holdings inc closed 3361 below its 52week high 11960 which the company reached on august 26th trading volume 21 m remained 614425 below its 50day average volume of 27 m editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use