shares of cf industries holdings inc cf slipped 015 to 8412 wednesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 111 to 411786 and dow jones industrial average djia falling 061 to 3394901 this was the stocks second consecutive day of losses cf industries holdings inc closed 3548 short of its 52week high 11960 which the company reached on august 26th trading volume 18 m remained 939920 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