shares of martin marietta materials inc mlm rose 320 to 35498 wednesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 128 to 396961 and the dow jones industrial average djia rising 080 to 3397301 the stocks rise snapped a twoday losing streak martin marietta materials inc closed 7306 below its 52week high 42804 which the company reached on january 12th 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