shares of blackberry ltd bb shed 200 to 589 friday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 001 to 390136 and the dow jones industrial average djia rising 003 to 3126190 blackberry ltd closed 1428 below its 52week high 2017 which the company achieved on june 3rd the stock underperformed when compared to some of its competitors friday as crowdstrike holdings inc cl a crwd rose 428 to 14874 vmware inc vmw rose 080 to 9571 and citrix systems inc ctxs fell 019 to 9927 trading volume 128 m eclipsed its 50day average volume of 86 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