ITRON, INC. Exhibit 11 COMPUTATION OF EARNINGS PER SHARE (In thousands) Year ended December 31, ------------------------------------- 1995 1996 1997 ---------- --------- ------------ Weighted average number of common shares 13,095 13,297 14,118 outstanding ========== ========= ============ Basic EPS $0.85 ($0.11) $0.07 1995 1996 1997 ---------- --------- ------------ Weighted average number of common shares 13,095 13,297 14,118 outstanding Dilutive effect of outstanding common stock options and 680 0 444 warrants at average market price ---------- --------- ------------ Weighted average shares outstanding based on ending 13,775 13,297 14,562 market price ========== ========= ============ Diluted EPS based on average market price $0.81 ($0.11) $0.07