VERNON HILLS, Ill.--(BUSINESS WIRE)--CDW Corporation (Nasdaq: CDW): (Dollars in millions, except per share amounts) Three Months Ended December 31, Year Ended December 31, 2025 2024 Percent Change 2025 2024 Percent Change Net sales $ 5,511.0 $ 5,186.0 6.3 % $ 22,424.1 $ 20,998.7 6.8 % Gross profit $ 1,254.4 $ 1,155.3 8.6 $ 4,873.4 $ 4,602.4 5.9 Gross profit margin 22.8 % 22.3 % 21.7 % 21.9 % Operating income $ 430.7 $ 408.6 5.4 $ 1,655.6 $.