shares of blackberry ltd bb slid 116 to 510 friday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 037 to 440959 and dow jones industrial average djia falling 032 to 3429912 this was the stocks fourth consecutive day of losses blackberry ltd closed 210 below its 52week high 720 which the company achieved on august 16th the stock demonstrated a mixed performance when compared to some of its competitors friday as alphabet inc cl a googl fell 125 to 12353 apple inc aapl fell 059 to 18492 and motorola solutions inc msi fell 072 to 28025 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