EXHIBIT A WATERHOUSE INVESTOR SERVICES, INC. AND SUBSIDIARIES COMPUTATION OF EARNINGS PER COMMON AND COMMON EQUIVALENT SHARES Six Months Ended Six Months Ended February 29, 1996 February 28, 1995 Primary Fully Diluted Primary Fully Diluted ------------ ------------- ------------ ------------- Weighted average number of common shares outstanding during the period 11,701,908 11,701,908 11,751,798 11,751,798 Weighted average number of common shares issuable assuming full conversion of 6% convertible subordinated notes -- 2,072,265 -- 2,072,650 Weighted average number of common shares held in treasury (250,002) (250,002) (250,002) (250,002) Common shares issuable assuming stock options outstanding were exercised at the beginning of the period 190,667 228,095 20,545 63,215 ------------ ------------ ------------ ------------ Weighted average number of common and common equivalent shares outstanding at end of period 11,642,573 13,752,266 11,522,341 13,637,661 ============ ============ ============ ============ Earnings applicable for common shares $ 14,147,939 $ 14,958,224 $ 7,703,904 $ 8,547,804 Earnings per common and common equivalent shares $1.22 $1.09 $.67 $.63 15