shares of martin marietta materials inc mlm inched 010 higher to 36573 friday on what proved to be an allaround mixed trading session for the stock market with the dow jones industrial average djia rising 010 to 3442988 and the sp 500 index spx falling 012 to 407170 martin marietta materials inc closed 8073 below its 52week high 44646 which the company achieved on january 4th trading volume 298610 remained 95166 below its 50day average volume of 393776 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