1 EXHIBIT 11 DIODES INCORPORATED AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE Year Ended December 31, ---------------------------------------------- BASIC 1997 1996 1995 ---------- ---------- ---------- Net income for primary earnings per share $5,125,000 $2,965,000 $4,700,000 ========== ========== ========== Weighted average number of common shares outstanding during the year 4,970,705 4,958,658 4,881,125 ---------- ---------- ---------- Basic earnings per share $ 1.03 $ .60 $ .96 ========== ========== ========== DILUTED Weighted average number of shares outstanding used in calculating basic earnings per share 4,970,705 4,958,658 4,881,125 Add additional shares issuable upon exercise of stock options 510,975 403,369 339,071 ---------- ---------- ---------- Weighted average number of shares used in calculating diluted earnings per share 5,481,680 5,362,027 5,220,196 ========== ========== ========== Diluted earnings per share $ .93 $ .55 $ .90 ========== ========== ========== 51