ALABAMA NATIONAL BANCORPORATION COMPUTATION OF EARNINGS PER SHARE (UNAUDITED) (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) EXHIBIT 11 PER SHARE INCOME SHARES AMOUNT 1998 Basic EPS net income ......................... $3,748 8,648 $0.43 ===== Effect of dilutive securities options ........ - 312 ------ ----- Diluted EPS .................................. $3,748 8,960 $0.42 ====== ===== ===== 1997 Basic EPS net income ......................... $3,125 8,571 $0.36 ===== Effect of dilutive securities options ........ - 306 ------ ----- Diluted EPS .................................. $3,125 8,877 $0.35 ====== ===== =====