EXHIBIT - 11.1 ACE LIMITED AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE Three Months Ended Six Months Ended March 31 March 31 1997 1996 1997 1996 -------- -------- -------- ------ (in thousands, except per share amounts) Earnings per share - Primary Weighted average shares outstanding 57,332,309 46,105,114 57,885,112 46,107,816 Average stock options outstanding (net of repurchased shares under the treasury stock method) 780,130 354,507 715,786 354,507 ------------ ------------ ------------ ------------ Weighted average shares and share equivalents outstanding 58,112,439 46,459,621 58,600,898 46,462,323 ========== ========== ========== ========== Net income $ 77,949 $ 56,803 $ 203,690 $ 150,339 ============ =========== ========== =========== Earnings per share $ 1.34 $ 1.22 $ 3.48 $ 3.24 ============ =========== ========== =========== Earnings per share - Assuming full dilution Weighted average shares outstanding 57,332,309 46,105,114 57,885,112 46,107,816 Average stock options outstanding (net of repurchased shares under the treasury stock method) 841,623 363,585 841,623 363,585 ------------- ------------ ------------ ------------ Weighted average shares and share equivalents outstanding 58,173,932 46,468,699 58,726,735 46,471,401 ========== ========== ========== ========== Net income $ 77,949 $ 56,803 $ 203,690 $ 150,339 ============== ============ ============ =========== Earnings per share $ 1.34 $ 1.22 $ 3.47 $ 3.24 ================ ============== ============ =========== 31