shares of packaging corp of america pkg slid 056 to 15160 tuesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 034 to 452003 and dow jones industrial average djia falling 076 to 3510000 this was the stocks third consecutive day of losses packaging corp of america closed 494 below its 52week high 15654 which the company achieved on may 10th despite its losses the stock outperformed some of its competitors tuesday as international paper co ip fell 204 to 5870 westrock co wrk fell 215 to 5147 and graphic packaging holding co gpk fell 140 to 2043true trading volume 635424 eclipsed its 50day average volume of 546003 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