BANDAG, INCORPORATED AND SUBSIDIARIES Exhibit 11 COMPUTATION OF EARNINGS PER SHARE For The Three For The Nine Months Ended Months Ended September 30, September 30, 1997 1996 1997 1996 (In thousands except per share data) Net earnings per common and common equivalent share: Weighted average number of shares of Common Stock, Class A Common Stock and Class B Common Stock outstanding 22,779 23,415 22,828 23,858 Additional shares assuming exercise of dilutive stock options -based on treasury stock method using average market price 106 107 106 106 ------- ------ ------ ------ AVERAGE NUMBER OF COMMON AND COMMON EQUIVALENT SHARES 22,885 23,522 22,934 23,964 ======= ====== ====== ====== Net earnings $23,794 $23,945 $55,094 $59,905 ======= ====== ====== ====== Net earnings per common and common equivalent share $1.04 $1.02 $2.40 $2.50 ======= ====== ====== ====== Net earnings per common share assuming full dilution: Weighted average shares outstanding 22,779 23,415 22,828 23,858 Additional shares assuming exercise of dilutive stock options -based on the treasury stock method using the month-end price if higher than the average market price 106 107 106 106 ------- ------ ------ ------ FULLY-DILUTED AVERAGE NUMBER OF COMMON AND COMMON EQUIVALENT SHARES 22,885 23,522 22,934 23,964 ======= ====== ====== ====== Net earnings $23,794 $23,945 $55,094 $59,905 ======= ====== ====== ====== Net earnings per common and common equivalent share $1.04 $1.02 $2.40 $2.50 ======= ====== ====== ======