SWIFT TRANSPORTATION CO., INC. & SUBSIDIARIES Schedule of Computation of Net Earnings Per Share (in thousands, except per share amounts) Three months ended Six months ended June 30, June 30, ------------------ ------------------ 2000 1999 2000 1999 ------- ------- ------- ------- Net earnings $16,561 $17,504 $27,216 $29,607 ======= ======= ======= ======= Weighted average shares: Common shares outstanding 63,065 64,027 63,152 63,888 Common equivalent shares issuable upon exercise of employee stock options 901 1,145 860 1,274 ------- ------- ------- ------- Diluted weighted average shares 63,966 65,172 64,012 65,162 ======= ======= ======= ======= Basic earnings per share $ .26 $ .27 $ .43 $ .46 ======= ======= ======= ======= Diluted earnings per share $ .26 $ .27 $ .43 $ .45 ======= ======= ======= =======