Exhibit 11 Ballantyne of Omaha, Inc. and Subsidiaries Computation of Earnings Per Share of Common Stock Nine Months Ended September 30, 1998 and 1997 1998 1997 ---- ---- BASIC EARNINGS Earnings applicable to common stock $ 5,745,191 $ 5,476,283 Weighted average common shares outstanding * 13,724,622 13,079,505 ----------- ----------- Basic earnings per share $ 0.42 $ 0.42 ----------- ----------- ----------- ----------- DILUTED EARNINGS Earnings applicable to common stock $ 5,745,191 $ 5,476,283 Weighted average common shares outstanding * 13,724,622 13,079,505 Assuming conversion of options outstanding * 656,027 1,034,934 ----------- ----------- Weighted average common shares outstanding, as adjusted * 14,380,649 14,114,439 ----------- ----------- Diluted earnings per share $ 0.40 $ 0.39 ----------- ----------- ----------- ----------- *Adjusted for 3-for-2 stock split effected June 12, 1998 Exhibit 11 continued... Ballantyne of Omaha, Inc. and Subsidiaries Computation of Earnings Per Share of Common Stock Three Months Ended September 30, 1998 and 1997 1998 1997 ---- ---- BASIC EARNINGS Earnings applicable to common stock $ 2,418,041 $ 2,052,831 Weighted average common shares outstanding * 13,789,783 13,482,047 ------------ ------------ Basic earnings per share $ 0.18 $ 0.15 ------------ ------------ ------------ ------------ DILUTED EARNINGS Earnings applicable to common stock $ 2,418,041 $ 2,052,831 Weighted average common shares outstanding * 13,789,783 13,482,047 Assuming conversion of options outstanding * 586,595 743,913 ------------ ------------ Weighted average common shares outstanding, as adjusted * 14,376,378 14,225,960 ------------ ------------ Diluted earnings per share $ 0.17 $ 0.14 ------------ ------------ ------------ ------------ * Adjusted for 3-for-2 stock split effected June 12, 1998