EXHIBIT 11.1 CAI WIRELESS SYSTEMS, INC. AND SUBSIDIARIES Computation of Loss per Common Share For the Nine-Month Period Ended December 31, 1996 Net loss $ (57,493,239) Preferred stock dividend (9,576,367) Loss applicable to common stock shareholders $ (67,069,606) Weighted average number of shares outstanding 39,915,020 Loss per common share $ (1.68) COMPUTATION OF WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING Weighted Average SHARES SHARES FOR THE NINE MONTHS ENDED DECEMBER 31, 1996 Beginning Balance 37,829,482 37,829,482 Series A Preferred Stock - converted 2,637,742 2,028,219 Warrants exercised 73,315 57,319 Warrants - BANX 36,751,083 0 Warrants - Other 2,235,541 0 Options 2,152,604 0 39,915,020 (a) Outstanding convertible preferred stock, warrants and options are not considered for the purposes of calculating the weighted average shares outstanding since these securities are anti-dilutive. (b) The Series A Redeemable Convertible Preferred Stock have been converted as of December 31, 1996.