Packaging Corp of America generated $9.2B in trailing twelve-month revenue, up 0.1% year-over-year. Net income was $741.1M with a 8.04% net margin. Gross margin stands at 20.48% and operating margin at 11.7%. Diluted EPS is $8.22, which declined 0.1% year-over-year. Based on the Q1 2026 filing.