Disconnected Comparisons In this issue of Disconnected Comparisons, we evaluate Packaging Corp Of America (PKG) and Sonoco Products Co (SON). A USD 100 investment in PKG on 4 January 2002 would have been worth USD 614.34 on 2 April 2015; a USD 100 investment in SON on 4 January 2002 would have been worth USD 257.22 on 2 April 2015; and a USD 100 investment in the PM40 on 4 January 2002 would have been worth USD 352.97 on 2 April 2015. Click here to view the comparison. Packaging Corp Of America. (PKG) is a NYSE traded company. Their Web site is packagingcorp.com. Sonoco Products Co (SON) is a NYSE traded company. Their Web site is sonoco.com.