1 Exhibit 11 FIRST EMPIRE STATE CORPORATION AND SUBSIDIARIES COMPUTATION OF EARNINGS PER COMMON SHARE Year ended December 31 ------------------------- Amounts in thousands, except per share 1993 1992 1991 Primary ---- ---- ---- Average common share outstanding 6,869 6,735 6,673 Common stock equivalents* 222 298 232 ----- ----- ----- Primary common shares outstanding 7,091 7,033 6,905 ===== ===== ===== Net income $101,992 97,937 67,194 Less: Preferred stock dividends 3,600 3,600 2,860 ------- ------ ------ Net income available to common shareholders 98,392 94,337 64,334 ======= ====== ====== Earnings per common share-primary $ 13.87 13.41 9.32 ===== ===== ===== Fully diluted Average common shares outstanding 6,869 6,735 6,673 Common stock equivalents* 225 302 268 Assumed conversion of convertible preferred stock 507 507 406 ----- ----- ----- Fully diluted average common shares outstanding 7,601 7,544 7,347 ===== ===== ===== Net income $ 101,992 97,937 67,194 ======= ====== ====== Earnings per common share-fully diluted $ 13.42 12.98 9.15 ====== ===== ===== * Represents shares issuable upon the assumed exercise of outstanding common stock options under the "Treasury Stock" method of accounting.