shares of general motors co gm slumped 018 to 3918 friday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 105 to 397004 and dow jones industrial average djia falling 102 to 3281692 this was the stocks fourth consecutive day of losses general motors co closed 830 short of its 52week high 4748 which the company reached on february 25th despite its losses the stock outperformed some of its competitors friday as tesla inc tsla fell 257 to 19688 trading volume 129 m remained 23 million below its 50day average volume of 152 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