1 Exhibit 11 Marks Bros. Jewelers, Inc. Computation of Per Share Earnings (unaudited, amounts in thousands, except per share earnings) Three Months Ended Nine Months Ended Oct. 31, Oct. 31, Oct. 31, Oct. 31, 1996 1995 1996 1995 --------- ---------- ---------- -------- Primary earnings per share: Income (loss) before extraordinary gain $ 457 $ (2,048) $ 1,005 $ (4,703) Extraordinary gain on extinguishment of debt, net of taxes --- --- 11,164 --- --------- --------- --------- --------- Net income (loss) $ 457 $ (2,048) $ 12,169 $ (4,703) ========= ========= ========= ========= Average shares outstanding(1) 8,372,250 4,731,358 7,220,431 4,607,340 Additional shares assuming conversion of Class B Shares 3,213 9,731 3,213 10,344 Common share equivalents under the 1995 Option Plan assuming the treasury stock method 532,220 --- 558,680 --- Common share equivalents under the 1996 Option Plan assuming the treasury stock method 300,580 --- 139,619 --- --------- --------- --------- --------- Averages number of common shares and common share equivalents outstanding 9,208,263 4,741,089 7,921,943 4,617,684 ========= ========= ========= ========= Income (loss) before extraordinary gain per share $ 0.05 $ (0.43) $ 0.13 (1.02) Extraordinary gain on extinguishment of debt, net of taxes per share --- --- 1.41 --- --------- --------- --------- --------- Net income (loss) per share $ 0.05 $ (0.43) $ 1.54 $ (1.02) ========= ========= ========= ========= (1) Included in the average number of shares outstanding is the effect of the exercise of 126,700 options on April 10, 1996. -21- 2 Marks Bros. Jewelers, Inc. Computation of Per Share Earnings (unaudited, amounts in thousands, except per share earnings) Three Months Ended Nine Months Ended Oct. 31, Oct. 31, Oct. 31, Oct. 31, 1996 1995 1996 1995 --------- ---------- ---------- -------- Fully diluted earnings per share: Income (loss) before extraordinary gain $ 457 $ (2,048) $ 1,005 $ (4,703) Extraordinary gain on extinguishment of debt, net of taxes --- --- 11,164 --- -------- --------- --------- --------- Net income (loss) $ 457 $ (2,048) $ 12,169 $ (4,703) ========= ========= ========= ========= Average shares outstanding(1) 8,372,250 4,731,358 7,220,431 4,607,340 Additional shares assuming conversion of Class B Shares 3,213 9,731 3,213 10,344 Common share equivalents under the 1995 Option Plan assuming the treasury stock method 532,220 --- 562,312 --- Common share equivalents under the 1996 Option Plan assuming the treasury stock method 300,580 --- 182,296 --- --------- --------- --------- --------- Averages number of common shares and common share equivalents outstanding 9,208,263 4,741,089 7,968,252 4,617,684 ========= ========= ========= ========= Income (loss) before extraordinary gain per share $ 0.05 $ (0.43) $ 0.13 (1.02) Extraordinary gain on extinguishment of debt, net of taxes per share --- --- 1.40 --- --------- --------- --------- --------- Net income (loss) per share $ 0.05 $ (0.43) $ 1.53 $ (1.02) ========= ========= ========= ========= (1) Included in the average number of shares outstanding is the effect of the exercise of 126,700 options on April 10, 1996. -22-