1 CERPROBE CORPORATION COMPUTATION OF NET INCOME (LOSS) PER SHARE EXHIBIT 11 Three Months Ended Nine Months Ended September 30, September 30, ------------- ------------- 2000 1999 2000 1999 ---- ---- ---- ---- Net income (loss) $ 3,084,934 $ (878,138) $ 5,862,062 $(2,392,070) =========== =========== =========== =========== Weighted average number of common shares outstanding 9,486,424 7,836,237 9,444,969 7,740,136 Common equivalent shares representing shares issuable upon exercise of stock options 567,002 12,059 442,573 89,430 Convertible preferred stock -- -- -- -- Subtraction of common equivalent shares due to antidilutive nature -- (12,059) -- (89,430) ----------- ----------- ----------- ----------- Dilutive adjusted weighted average shares and assumed conversions 10,053,426 7,836,237 9,887,542 7,740,136 =========== =========== =========== =========== Basic net income (loss) per share $ 0.33 $ (0.11) $ 0.62 $ (0.31) =========== =========== =========== =========== Diluted net income (loss) per share $ 0.31 $ (0.11) $ 0.59 $ (0.31) =========== =========== =========== ===========