Exhibit 11 WASTE HOLDINGS, INC. COMPUTATION RE: EARNINGS PER SHARE (In thousands, except per share data) Three Months Ended Nine Months Ended September 30, September 30, ------------- ------------- 2000 2001 2000 2001 ---- ---- ---- ---- Net income $ 1,730 $ 2,023 $ 5,996 $ 5,311 ======= ======= ======= ======= Weighted average number of common shares issued and outstanding - Basic 13,633 13,338 13,778 13,272 Common stock equivalents Options for common stock 369 176 438 136 ------- ------- ------- ------- Weighted average common stock equivalents 14,002 13,514 14,216 13,408 Less treasury shares to be repurchased (187) (153) (217) (127) ------- ------- ------- ------- Weighted average shares outstanding - Diluted 13,815 13,361 13,999 13,281 Basic earnings per share $ 0.13 $ 0.15 $ 0.44 $ 0.40 ======= ======= ======= ======= Diluted earnings per share $ 0.13 $ 0.15 $ 0.43 $ 0.40 ======= ======= ======= =======