shares of autodesk inc adsk slumped 097 to 21430 monday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 075 to 387198 and dow jones industrial average djia falling 039 to 3273295 autodesk inc closed 12118 short of its 52week high 33548 which the company reached on november 17th despite its losses the stock outperformed some of its competitors monday as apple inc aapl fell 154 to 15334 adobe inc adbe fell 220 to 31850 and synopsys inc snps fell 111 to 29255true trading volume 952012 remained 479848 below its 50day average volume of 14 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