1 HEALTH MANAGEMENT SYSTEMS, INC. AND SUBSIDIARIES EXHIBIT 11--COMPUTATIONS OF EARNINGS PER SHARE (In Thousands, Except Per Share Amounts) Three months ended January 31, ------------------ 1998 1997 ------- ------- Basic and Diluted Earnings Per Share: Earnings data: Net income $ 879 1,803 ======= ======= Weighted average shares outstanding: Average shares of common stock outstanding 17,347 17,632 Net effect of dilutive stock options--based on the treasury stock method using average market price 172 604 ------- ------- Weighted average common shares and common share equivalents outstanding 17,519 18,236 ======= ======= Earnings per common share: Basic earnings per share $ 0.05 0.10 ======= ======= Diluted earnings per share $ 0.05 0.10 ======= =======