EXHIBIT 11 - Computation of Earnings Per Share Item 6(a) Exhibit 11 Computation of Earnings per Share United Industrial Corporation and Subsidiaries Three Months Ended Six Months Ended June 30 June 30 ------------------ ----------------- 1998 1997 1998 1997 ---- ---- ---- ---- Net income $2,298,000 $1,670,000 $4,621,000 $3,433,000 ========== ========== ========== ========== Basic earnings per share: Weighted average shares 12,325,530 12,176,443 12,289,947 12,175,693 ========== ========== ========== ========== Effect of dilutive securities: Employee and non-employee director stock options 338,837 193,469 388,980 151,311 ======= ======= ======= ======= Diluted earnings per share: Adjusted weighted-average and assumed conversions 12,664,367 12,369,912 12,678,927 12,327,004 ========== ========== ========== ========== Basic earnings per share $ .19 $ .14 $ .38 $ .28 ====== ====== ====== ====== Diluted earnings per share $ .18 $ .14 $ .36 $ .28 ====== ====== ====== ====== - --------------------------------------------------------------------------------------- 11