shares of vulcan materials co vmc sank 091 to 17409 wednesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 120 to 378322 and dow jones industrial average djia falling 110 to 3287571 the stocks fall snapped a twoday winning streak vulcan materials co closed 3956 short of its 52week high 21365 which the company reached on january 4th trading volume 270839 remained 450942 below its 50day average volume of 721781 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