1 Exhibit 11 COBANCORP INC. AND SUBSIDIARIES EXHIBIT (11)--STATEMENT RE: COMPUTATION OF EARNINGS PER SHARE Three Months Ended June 30 Six Months Ended June 30 ---------------------------- ---------------------------- 1997 1996 1997 1996 ---------- ---------- ---------- ----------- Primary: Average shares outstanding 3,453,824 3,447,160 3,453,824 3,447,160 Net effect of dilutive stock options-- based on the treasury stock method using average market price 46,668 28,626 41,267 28,763 ---------- ---------- ---------- ---------- Total shares 3,500,492 3,475,786 3,495,091 3,475,923 ========== ========== ========== ========== Net income $1,676,224 $1,634,321 $2,962,806 $2,919,809 ========== ========== ========== ========== Net income per share $ 0.49 $ 0.47 $ 0.86 $ 0.85 ========== ========== ========== ========== Fully diluted: Average shares outstanding 3,453,824 3,447,160 3,453,824 3,447,160 Net effect of dilutive stock options-- based on the treasury stock method using the higher of average market price or ending market price 54,242 29,373 48,135 29,137 ---------- ---------- ---------- ---------- Total shares 3,508,066 3,476,533 3,501,959 3,476,297 ========== ========== ========== ========== Net income $1,676,224 $1,634,321 $2,962,806 $2,919,809 ========== ========== ========== ========== Net income per share $ 0.49 $ 0.47 $ 0.86 $ 0.85 ========== ========== ========== ==========