EXHIBIT 11 HEICO CORPORATION AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE 1998 1997 ----------------------------- ---------------------------- BASIC DILUTED BASIC DILUTED ---------- ---------- ---------- ---------- Nine months ended July 31: Weighted average number of common shares outstanding 12,496,073 12,496,073 11,976,842 11,976,842 Common Stock equivalents arising from dilutive stock options (1) -- 3,094,011 -- 2,295,394 ---------- ---------- ---------- ---------- 12,496,073 15,590,084 11,976,842 14,272,236 ========== ========== ========== ========== Net income per share $ .59 $ .47 $ .41 $ .35 ========== ========== ========== ========== Three months ended July 31: Weighted average number of common shares outstanding 12,582,605 12,582,605 12,037,921 12,037,921 Common Stock equivalents arising from dilutive stock options (1) -- 3,169,349 -- 2,286,229 ---------- ---------- ---------- ---------- 12,582,605 15,751,954 12,037,921 14,324,150 ========== ========== ========== ========== Net income per share $ .21 $ .17 $ .14 $ .12 ========== ========== ========== ========== - ---------- (1) Computed under the "treasury stock" method using the average market price.