BANDAG, INCORPORATED AND SUBSIDIARIES Exhibit 11 COMPUTATION OF EARNINGS PER SHARE For The Three Months Ended March 31, 1993 1992 (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 27,095 27,292 Additional shares assuming exercise of dilutive stock options - based on treasury stock method using average market price 117 117 ------- ------- AVERAGE NUMBER OF COMMON AND COMMON EQUIVALENT SHARES 27,212 27,409 ======= ======= Net earnings $15,431 $13,898 ======= ======= Net earnings per common and common equivalent share $ 0.57 $ 0.51 ======= ======= Net earnings per common share assuming full dilution: Weighted average shares outstanding 27,095 27,292 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 117 118 ------- ------- FULLY-DILUTED AVERAGE NUMBER OF COMMON AND COMMON EQUIVALENT SHARES 27,212 27,410 ======= ======= Net earnings $15,431 $13,898 ======= ======= Net earnings per common and common equivalent share $ 0.57 $ 0.51 ======= =======