EXHIBIT 11.1 Cable Design Technologies Corporation Computation of Earnings per Share (In thousands, except share and per share data] Quarter Ended October 31, 1997 1996 Primary: Net Income $11,450 $8,138 Weighted average number of shares of common stock outstanding 18,797,742 18,166,356 Assumed exercise of stock options 2,059,373 2,369,077 ------------------------ Total shares 20,857,115 20,535,433 Primary earnings per common share $0.55 $0.40 Quarter Ended October 31, 1997 1996 Fully diluted: Net Income $11,450 $8,138 Weighted average number of shares of comon stock outstanding 18,797,742 18,166,356 Assumed exercise of stock options 2,096,068 2,369,077 ------------------------ Total shares 20,893,810 20,535,433 Fully diluted earnings per common share $0.55 $0.40