1 Exhibit (11) - Statement Re: Computation of Earnings Per Share COMPUTATION OF EARNINGS PER SHARE Comerica Incorporated and Subsidiaries (In thousands, except per share data) Three Months Ended Six Months Ended June 30 June 30 ------------------- ------------------- 1998 1997 1998 1997 -------- -------- -------- -------- Basic: Average shares outstanding 155,992 158,289 156,353 159,090 ======== ======== ======== ======== Net income $150,383 $129,710 $294,766 $253,482 Less preferred stock dividends 4,275 4,275 8,550 8,550 -------- -------- -------- -------- Net income applicable to common stock $146,108 $125,435 $286,216 $244,932 ======== ======== ======== ======== Basic net income per share $0.94 $0.79 $1.83 $1.54 Diluted: Average shares outstanding 155,992 158,289 156,353 159,090 Noninvested stock 209 205 199 207 Common stock equivalent: Net effect of the assumed exercise of stock options 2,812 2,213 2,839 2,250 -------- -------- -------- -------- Diluted average shares 159,013 160,707 159,391 161,547 ======== ======== ======== ======== Net income $150,383 $129,710 $294,766 $253,482 Less preferred stock dividends 4,275 4,275 8,550 8,550 -------- -------- -------- -------- Net income applicable to common stock $146,108 $125,435 $286,216 $244,932 ======== ======== ======== ======== Diluted net income per share $0.92 $0.78 $1.80 $1.52