Exhibit 11 ADE CORPORATION Statement Regarding Computation of Net Income Per Share Three months ended Six months ended October 31, October 31, -------------------------- --------------------- 1997 1996 1997 1996 ---- ---- ---- ---- (unaudited) (unaudited) Net income $630 $3,117 $4,513 $5,665 ==== ====== ====== ====== Weighted average common and common equivalent shares outstanding: a. Shares attributable to common stock outstanding 10,838 8,450 9,728 8,447 b. Shares attributable to common stock options pursuant to APB 15 478 322 492 371 --- --- --- --- Shares used in computation 11,316 8,772 10,220 8,818 ====== ===== ====== ===== Net income per share $0.06 $0.36 $0.44 $0.64 ====== ===== ====== ===== 17