Disconnected Comparisons In this issue of Disconnected Comparisons, we evaluate Rock-Tenn Company (RKT) and USG Corporation (USG). A USD 100 investment in RKT on 04 January 2002 would have been worth USD 445.90 on 24 February 2012; a USD 100 investment in USG on 04 January 2002 would have been worth USD 227.12 on 24 February 2012; and a USD 100 investment in the PM40 on 04 January 2002 would have been worth USD 202.09 on 24 February 2012. Click here to view the comparison. Rock-Tenn Company (RKT) is a NYSE traded company. Their Web site is rocktenn.com. USG Corporation (USG) is a NYSE traded company. Their Web site is usg.com.