PACKAGING CORPORATION OF AMERICA (PKG $28.83, rated Overweight, Price Target $35 up from $29) LOWER LONG TERM COST ASSUMPTIONS DRIVE HIGHER VALUATION 1/28/2011

PACKAGING CORPORATION OF AMERICA (PKG $28.83, rated Overweight, Price
Target $35 up from $29) LOWER LONG TERM COST ASSUMPTIONS DRIVE
HIGHER VALUATION 1/28/2011