EXHIBIT 11.1 NEWBRIDGE NETWORKS CORPORATION COMPUTATION OF EARNINGS PER SHARE (Accounting principles generally accepted in Canada) (Canadian dollars, amounts in thousands except per share data) (Unaudited) Fiscal quarter ended Two fiscal quarters ended -------------------- ------------------------- Oct 27, Oct 29, Oct 27, Oct 29, 1996 1995 1996 1995 ------- ------- ------- ------- Basic earnings per share Net earnings $ 62,781 $ 45,376 $123,582 $ 82,488 ======== ======== ======== ======== Common Shares outstanding at the beginning of the period 169,754 165,766 168,676 164,515 Weighted average number of Common Shares issued, net of Common Shares repurchased, during the period 478 98 1,060 974 -------- -------- -------- -------- Weighted average number of Common Shares outstanding at the end of the period 170,232 165,864 169,736 165,489 ======== ======== ======== ======== Basic earnings per share $0.37 $0.27 $0.73 $0.50 ======== ======== ======== ======== Fully diluted earnings per share Earnings before imputed earnings $ 62,781 $ 45,376 $123,582 $ 82,488 After tax imputed earnings from the investment of funds received through dilution 2,715 2,503 5,598 4,867 -------- -------- -------- -------- Adjusted net earnings $ 65,496 $ 47,879 $129,180 $ 87,355 ======== ======== ======== ======== Weighted average number of Common Shares outstanding at the end of the period 170,232 165,864 169,736 165,489 Weighted average common share equivalents based on conversion of outstanding stock options 13,899 13,773 13,198 13,742 -------- -------- -------- -------- Weighted average number of Common Shares and equivalents outstanding at the end of the period 184,131 179,637 182,934 179,231 ======== ======== ======== ======== Fully diluted earnings per share $0.36 $0.27 $0.71 $0.49 ======== ======== ======== ======== Earnings per share expressed in U.S. Dollars Daily average exchange rate of a Canadian dollar for U.S. dollars as reported by the Federal Reserve Bank of New York $0.7322 $0.7401 $0.7316 $0.7361 Basic earnings per share, in U.S. dollars $0.27 $0.20 $0.53 $0.37 ======== ======== ======== ======== Fully diluted earnings per share, in U.S. dollars $0.26 $0.20 $0.52 $0.36 ======= ======= ======= ======= (Page 19 of 20)