shares of cf industries holdings inc cf slumped 059 to 8481 friday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 093 to 396163 and dow jones industrial average djia falling 043 to 3189929 this was the stocks third consecutive day of losses cf industries holdings inc closed 2868 short of its 52week high 11349 which the company achieved on april 13th despite its losses the stock outperformed some of its competitors friday as yara international asa adr yariy fell 126 to 2045 scotts miraclegro co smg fell 343 to 8420 and sociedad quimica y minera de chile sa adr sqm fell 150 to 9062true trading volume 19 m remained 16 million below its 50day average volume of 35 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