Exhibit 11 ADE CORPORATION Statements Regarding Computation of Net Income Per Share (In thousands, except per share data) Three months ended July 31, --------------------- 1997 1996 (unaudited) Net income $3,883 $2,548 ====== ====== Weighted average common and common equivalent shares outstanding: a. Shares attributable to common stock outstanding 8,617 8,443 b. Shares attributable to common stock options pursuant to APB 15 507 421 Weighted average common and common equivalent shares outstanding 9,124 8,864 ====== ====== Net income per share $ 0.43 $ 0.29 ====== ======