1 EXHIBIT 11 ALABAMA NATIONAL BANCORPORATION COMPUTATION OF EARNINGS PER SHARE (UNAUDITED) (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) Nine Months Ended September 30, 1997 ------------------------------------ Primary Fully Diluted ------ ------ Net income .............................................. $8,193 $8,193 ====== ====== Average shares outstanding .............................. 6,531 6,531 Effect of stock options ................................. 188 202 Effect of Performance Share and Deferred Compensation Plans ........................... 17 20 ------ ------ Applicable shares outstanding ........................... 6,736 6,753 ====== ====== Earnings per share ...................................... $ 1.22 $.1.21 ====== ====== Three Months Ended September 30, 1997 ------------------------------------- Primary Fully Diluted ------ ------ Net income .............................................. $2,844 $2,844 ====== ====== Average shares outstanding .............................. 6,552 6,552 Effect of stock options ................................. 200 202 Effect of Performance Share and Deferred Compensation Plans ........................... 22 22 ------ ------ Applicable shares outstanding ........................... 6,774 6,776 ====== ====== Earnings per share ...................................... $ 0.42 $ 0.42 ====== ====== 24