EXHIBIT 11 CENTERPOINT PROPERTIES CORPORATION AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE (IN THOUSANDS, EXCEPT PER SHARE INFORMATION) THREE MONTHS ENDED JUNE 30, SIX MONTHS ENDED JUNE 30, 1997 1996 1997 1996 ---- ---- ---- ---- Net income (A) $7,143 $2,183 $12,814 $5,811 Interest expense-debentures 248 344 514 769 ------ ------ ------- ------ Adjusted net income (B) $7,391 $2,527 $13,328 $6,580 ======= ====== ======= ====== Weighted average number of shares of common stock outstanding 19,006 11,929 18,190 11,214 Additional number of common equivalent shares outstanding: Stock options - net (1) 265 148 266 146 Convertible preferred stock (2) 1,074 1,673 ------ ------ ------- ------ Weighted average common and common equivalent shares outstanding (C) 19,271 13,151 18,456 13,033 Additional weighted average shares outstanding assuming debentures converted at issue price 661 917 685 1,026 ------ ------ ------- ------ Weighted average shares outstanding for fully- diluted (D) 19,932 14,068 19,141 14,059 ====== ====== ======= ====== Net income per share: Primary (A/C) $0.37 $0.17 $0.69 $0.45 Fully -diluted (3) (B/D) $0.37 $0.18 $0.70 $0.47 ________________________________________________________ Notes: (1) Represents stock options using the treasury stock method. (2) Represents convertible preferred stock as if converted on a share for share basis; prorated for the days the convertible preferred stock was outstanding. The convertible preferred stock is considered a common stock equivalent as it participates in dividends with common stock and was converted into common stock upon shareholder approval in May 1996. (3) Conversion of debentures is anti-dilutive.