EXHIBIT 11 GOVERNMENT TECHNOLOGY SERVICES, INC. COMPUTATION OF EARNINGS PER SHARE (In thousands, except per share amounts) THREE NINE MONTHS ENDED MONTHS ENDED SEPTEMBER 30, SEPTEMBER 30, ------------------ ------------------ 1998 1997 1998 1997 -------- -------- -------- -------- Net income (loss) . . . . . . . . . . . . . . . . . . . . . $ 3,960 $ 1,891 $ 618 $(4,500) -------- -------- -------- -------- Weighted average shares of common stock outstanding . . . . 9,788 6,740 8,333 6,730 Weighted average effect of common share equivalents . . . . 61 308 229 N/A -------- -------- -------- -------- Weighted average shares outstanding . . . . . . . . . . . . 9,849 7,048 8,562 6,730 -------- -------- -------- -------- Net income (loss) per common share and common share equivalent. . . . . . . . . . . . . . . . . . . . . . . . $ 0.40 $ 0.27 $ 0.07 $ (0.67) ======== ======== ======== ========