EXHIBIT 11 ABBOTT LABORATORIES AND SUBSIDIARIES CALCULATION OF FULLY DILUTED EARNINGS PER SHARE (Dollars and Shares in Millions Except Per Share Amounts) THREE MONTHS ENDED MARCH 31 --------------------------- 1997 1996 -------- --------- 1. Net earnings $ 534.8 $ 480.1 -------- -------- 2. Average number of shares outstanding 774.0 785.8 -------- -------- 3. Earnings per share based upon average outstanding shares (1 divided by 2) $ .69 $ .61 -------- -------- -------- -------- 4. Fully diluted earnings per share: a. Stock options granted and outstanding for which the market price at quarter-end exceeds the option price 27.8 27.8 -------- -------- -------- -------- b. Aggregate proceeds to the Company from the exercise of options in 4.a. $ 926.6 $ 786.6 -------- -------- -------- -------- c. Market price of the Company's common stock at quarter-end $ 56.13 $ 40.75 -------- -------- -------- -------- d. Shares which could be repurchased under the treasury stock method (4.b. divided by 4.c.) 16.5 19.3 -------- -------- -------- -------- e. Addition to average outstanding shares (4.a. - 4.d.) 11.3 8.5 -------- -------- -------- -------- f. Shares for fully diluted earnings per share calculation (2. + 4.e.) 785.3 794.3 -------- -------- -------- -------- g. Fully diluted earnings per share (1. divided by 4.f.) $ .68 $ .60 -------- -------- -------- --------