Cable Design Technologies Corporation Exhibit 11.1 Computation of Earnings per Share (In thousands, except share and per share data) Quarter Ended January 31, Six Months Ended January 31, 1997 1996 1997 1996 Primary: Income before extraordinary items $7,940 $5,378 $16,078 $11,086 Extraordinary loss -- -- -- -- -------------------------- ---------------------------- Net Income $7,940 $5,378 $16,078 $11,086 Weighted average number of shares of common stock outstanding 18,265,075 14,633,491 18,215,725 14,625,681 Assumed exercise of stock options 2,276,124 2,726,967 2,317,702 2,678,453 -------------------------- ---------------------------- Total shares 20,541,199 17,360,458 20,533,427 17,304,134 Primary earnings before extraordinary items per common share $0.39 $0.31 $0.78 $0.64 Primary loss from extraordinary items per common share -- -- -- -- -------------------------- ---------------------------- Primary earnings per common share $0.39 $0.31 $0.78 $0.64 Quarter Ended January 31, Six Months Ended January 31, 1997 1996 1997 1996 Fully diluted: Income before extraordinary items $7,940 $5,378 $16,078 $11,086 Extraordinary loss -- -- -- -- -------------------------- ---------------------------- Net Income $7,940 $5,378 $16,078 $11,086 Weighted average number of shares of common stock outstanding 18,265,075 14,633,491 18,215,725 14,625,681 Assumed exercise of stock options 2,276,124 2,808,975 2,317,702 2,790,655 -------------------------- ---------------------------- Total shares 20,541,199 17,442,466 20,533,427 17,416,336 Fully diluted earnings before extraordinary items per common share $0.39 $0.31 $0.78 $0.64 Fully diluted loss from extraordinary items per common share -- -- -- -- -------------------------- ---------------------------- Fully diluted earnings per common share $0.39 $0.31 $0.78 $0.64