EXHIBIT 11.1 THRUSTMASTER, INC. STATEMENTS REGARDING COMPUTATION OF PER SHARE EARNINGS (In thousands, except net income per share) (Unaudited) Three Months Ended Nine Months Ended September 30, September 30, ------------------ ----------------- 1998 1997 1998 1997 ------- ------ ------ ------ Weighted average number of common shares outstanding - basic 4,385 4,276 4,353 4,255 Common stock equivalents arising from stock options - 447 - 365 ------- ------ ------- ------- Weighted average number of common shares outstanding - diluted 4,385 4,723 4,353 4,620 ------- ------ ------- ------- ------- ------ ------- ------- Net income (loss) $(3,282) $ 836 $(7,352) $1,454 ------- ------ ------- ------- ------- ------ ------- ------- Net income (loss) per share - basic $ (0.75) $ 0.20 $ (1.69) $ 0.34 ------- ------ ------- ------- ------- ------ ------- ------- Net income (loss) per share - diluted $ (0.75) $ 0.18 $ (1.69) $ 0.31 ------- ------ ------- ------- ------- ------ ------- -------