COEUR D'ALENE MINES CORPORATION AND SUBSIDIARIES EXHIBIT 11 STATEMENT REGARDING COMPUTATION OF PER SHARE EARNINGS THREE MONTHS ENDED NINE MONTHS ENDED SEPTEMBER 30 SEPTEMBER 30 ----------------------------- ----------------------------- 1997 1996 1997 1996 ---------- ---------- ---------- ---------- (In thousands except per share amounts) Weighted average shares outstanding 21,891 21,891 21,891 21,327 Net effect of dilutive stock options-based on the treasury stock method using average market price 2 ---------- ---------- ---------- ---------- 21,891 21,893 21,891 21,327 ========== ========== ========== ========== Net income (Loss) $ (6,268) $ 1,878 $ (8,265) $ (54,870) ========== ========== ========== ========== Per share amounts: Net income (loss) per share $ (.29) $ .09 $ (.38) $ (2.57) ========== ========== ========== ========== Net income (loss) $ (6,268) $ 1,878 $ (8,265) $ (54,870) Less preferred dividends 2,635 2,632 7,899 5,764 ---------- ---------- ---------- ---------- Net income (loss) attributable to common shareholders $ (8,903) $ (754) $ (16,164) $ (60,634) ========== ========== ========== ========== Per share amounts attributable to common shareholders: Net income (loss) per share attributable to common shareholders $ (.41) $ (.03) $ (.74) $ (2.84) ========== ========== ========== ========== COEUR D'ALENE MINES CORPORATION AND SUBSIDIARIES EXHIBIT 11 STATEMENT REGARDING COMPUTATION OF PER SHARE EARNINGS (continued) THREE MONTHS ENDED NINE MONTHS ENDED SEPTEMBER 30 SEPTEMBER 30 ----------------------------- ----------------------------- 1997 1996 1997 1996 ---------- ---------- ---------- ---------- (In thousands except per share amounts) Fully diluted earnings per share: Average shares outstanding 21,891 Net effect of dilutive stock options-based on the treasury stock method using average market price 2 Assumed conversion of 6% convertible bonds 1,949 Assumed conversion of 6 3/8% convertible bonds 3,880 Assumed conversion of MARCS 7,078 ---------- ---------- 34,800 ========== ========== Net income $ $ 1,878 Add 6% convertible bond interest net of federal income tax effect 513 Add 7% convertible bond interest net of federal income tax effect Add 6 3/8% convertible bond interest net of federal income tax effect 1,104 Less adjustment for capitalized interest (1,442) ---------- ---------- Income from continuing operations $ $ 2,052 ========== ========== Per share amounts: Earnings from continuing operations $ $ .06 ========== ========== -2-