shares of marketaxess holdings inc mktx sank 009 to 26276 monday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 045 to 432882 and dow jones industrial average djia falling 004 to 3371471 this was the stocks sixth consecutive day of losses marketaxess holdings inc closed 13702 below its 52week high 39978 which the company reached on april 4th the stock underperformed when compared to some of its competitors monday as blackstone inc bx rose 107 to 8878 morgan stanley ms rose 001 to 8359 and charles schwab corp schw rose 045 to 5341 trading volume 220806 remained 130438 below its 50day average volume of 351244 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