1 SPECTRAN CORPORATION EXHIBIT 11.1 SpecTran Corporation Net Income (Loss) per Share Calculation (Dollars in thousands except per share amounts) The following is a calculation of net income (loss) per share for the years ended December 31, 1996, 1995 and 1994. Years Ended December 31, --------------------------------------- Calculation of Primary Net Income (Loss) per Share 1996 1995 1994 - -------------------------------------------------- ----------- ----------- ----------- Average common shares outstanding 5,374,442 5,298,388 5,202,604 Shares assumed to be repurchased under treasury stock method for stock options and stock purchase warrants 551,423 283,961 -- ----------- ----------- ----------- Total Shares 5,925,865 5,582,349 5,202,604 =========== =========== =========== Net Income (loss) $ 3,655 $ 542 $ (487) =========== =========== =========== Per Share Amount $ .62 $ .10 $ (.09) =========== =========== =========== Years Ended December 31, --------------------------------------- Calculation of Fully Diluted Net Income (Loss) per Share 1996 1995 1994 - -------------------------------------------------------- ----------- ----------- ----------- Average common shares outstanding 5,374,442 5,298,388 5,202,604 Shares assumed to be repurchased under treasury stock method for stock options and stock purchase warrants 587,934 284,364 -- ----------- ----------- ----------- Total Shares 5,962,376 5,582,752 5,202,604 =========== =========== =========== Net Income (loss) $ 3,655 $ 542 $ (487) =========== =========== =========== Per Share Amount $ .61 $ .10 $ (.09) =========== =========== ===========