EXHIBIT 11 TRANSPORT CORPORATION OF AMERICA, INC. Computation of Net Earnings per Weighted Common and Common Equivalent Share (unaudited) Three months ended June 30, ------------------------ 1997 1996 ------------------------ Weighted average number of common shares outstanding 6,590,141 6,421,809 Dilutive effect of outstanding stock options and warrants 138,293 303,564 ------------------------ Weighted average number of common and common equivalent shares outstanding 6,728,434 6,725,373 ======================== Net earnings $2,074,079 $1,796,739 ======================== Net earnings per weighted common and common equivalent share $ 0.31 $ 0.27 ======================== Six months ended June 30, ------------------------ 1997 1996 ------------------------ Weighted average number of common shares outstanding 6,552,883 6,421,338 Dilutive effect of outstanding stock options and warrants 179,248 295,487 ------------------------ Weighted average number of common and common equivalent shares outstanding 6,732,131 6,716,825 ======================== Net earnings $3,061,967 $2,441,918 ======================== Net earnings per weighted common and common equivalent share $ 0.45 $ 0.36 ========================