Exhibit 11 ---------- COMPUTER NETWORK TECHNOLOGY CORPORATION Statement Re: Computation of Net Income (Loss) Per Common and Common Equivalent Share (Unaudited) (In thousands, except per share data) Three Months Ended Nine Months Ended September 30, September 30, 1997 1996 1997 1996 ------------- -------------- ------------- ---------------- Net Income (Loss) $ 373 $ 1,077 $ (108) $ 2,276 ============= ============== ============= ================ Primary Earnings (Loss) Per Share - ------------------------------------------ 22,674 23,352 22,920 23,196 Weighted average number of common shares outstanding Dilutive effect of outstanding common equivalent shares 138 339 - 422 ------------- -------------- ------------- ---------------- Weighted average number of common and common equivalent shares outstanding 22,812 23,691 22,920 23,618 ============= ============== ============= ================ Net income (Loss) per common and common equivalent share $ .02 $ .05 $ (.00) $ .10 ============= ============== ============= ================ Fully Diluted Earnings (Loss) Per Share: - ------------------------------------------ Weighted average number of common shares 22,674 23,352 22,920 22,196 outstanding Dilutive effect of outstanding common equivalent shares 186 339 - 423 ------------- -------------- ------------- ---------------- Weighted average number of common and common equivalent shares outstanding 22,860 23,691 22,920 23,619 ============= ============== ============= ================ Net income (Loss) per common and common equivalent share $ .02 $ .05 $ ( .00) $ .10 ============= ============== ============= ================