Packaging Corporation of America announced earnings results for the fourth quarter ended December 31, 2018. For the fourth quarter, the company announced sales was USD 1,746.6 million compared to USD 1,684.3 million a year ago. Operating income was USD 286.7 million compared to USD 252.3 million a year ago. Net income was USD 204.6 million compared to USD 268.9 million a year ago. Basic earnings per share was USD 2.17 compared to USD 2.85 a year ago. Diluted earnings per share was USD 2.16 compared to USD 2.84 a year ago. For the full year, sales was USD 7,014.6 million compared to USD 6,444.9 million a year ago. Operating income was USD 1,067.7 million compared to USD 932.5 million a year ago. Net income was USD 738 million compared to USD 668.6 million a year ago. Basic earnings per share was USD 7.82 compared to USD 7.09 a year ago. Diluted earnings per share was USD 7.8 compared to USD 7.07 a year ago.