shares of leidos holdings inc ldos sank 043 to 9707 tuesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 030 to 397015 and dow jones industrial average djia falling 071 to 3265670 this was the stocks fourth consecutive day of losses leidos holdings inc closed 1405 short of its 52week high 11112 which the company reached on april 20th despite its losses the stock outperformed some of its competitors tuesday as raytheon technologies