shares of leidos holdings inc ldos shed 137 to 9981 tuesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 092 to 381880 and dow jones industrial average djia falling 062 to 3098133 this was the stocks second consecutive day of losses leidos holdings inc closed 1131 below its 52week high 11112 which the company achieved on april 20th the stock demonstrated a mixed performance when compared to some of its competitors tuesday as