EXHIBIT 11 QUIXOTE CORPORATION AND SUBSIDIARIES Computation of Net Earnings Per Average Common and Common Equivalent Share For the Three Months Ended March 31, 1995 -------------------------- Fully Primary Diluted ---------- ---------- Net earnings as reported $1,709,000 $1,709,000 Add interest expense and deferred charge amortization (net of income taxes) 245,000 (1) ---------- ---------- Adjusted net earnings for computation (A) $1,709,000 $1,954,000 ========== ========== Average common shares outstanding would be adjusted for the additional shares that would be issued assuming conversion of the debentures and exercise of stock options as follows: Weighted average shares outstanding 7,816,266 7,816,266 Shares assumed issued upon conversion of debentures 1,051,316 Incremental shares outstanding assuming exercise of stock options using the treasury stock method 344,723 344,723 Shares issuable for retirement plan --------- --------- Average common and common equivalent shares outstanding (B) 8,160,989 9,212,305 ========= ========= Net earnings per common and common equivalent share (A/B) $.21 $.21 ==== ==== Notes: <FN> (1) Net earnings for the fully diluted calculation are adjusted for interest expense and deferred charge amortization, assuming exercise of the conversion privilege on the 8% convertible debentures. EXHIBIT 11 QUIXOTE CORPORATION AND SUBSIDIARIES Computation of Net Earnings Per Average Common and Common Equivalent Share For the Three Months ended March 31, 1994 ------------------------- Fully Primary Diluted ---------- ---------- Net earnings as reported $2,376,000 $2,376,000 Add interest expense and deferred charge amortization (net of income taxes) 245,000 (1) ---------- ---------- Adjusted net earnings for computation (A) $2,376,000 $2,621,000 ========== ========== Average common shares outstanding would be adjusted for the additional shares that would be issued assuming conversion of the debentures and exercise of stock options as follows: Weighted average shares outstanding 7,640,679 7,640,679 Shares assumed issued upon conversion of debentures 1,052,632 Incremental shares outstanding assuming exercise of stock options using the treasury stock method 371,784 383,701 Shares issuable for retirement plan 34,679 34,679 --------- --------- Average common and common equivalent shares outstanding (B) 8,047,142 9,111,691 ========= ========= Net earnings per common and common equivalent share (A/B) $.29 $.29 ==== ==== Notes: <FN> (1) Net earnings for the fully diluted calculation are adjusted for interest expense and deferred charge amortization, assuming exercise privilege on the 8% convertible debentures. EXHIBIT 11 QUIXOTE CORPORATION AND SUBSIDIARIES Computation of Net Earnings Per Average Common and Common Equivalent Share For the Nine Months Ended March 31, 1995 ------------------------- Fully Primary Diluted ---------- ---------- Net earnings as reported $4,674,000 $4,674,000 Add interest expense and deferred charge amortization (net of income taxes) 735,000 (1) ---------- ---------- Adjusted net earnings for computation (A) $4,674,000 $5,409,000 ========== ========== Average common shares outstanding would be adjusted for the additional shares that would be issued assuming conversion of the debentures and exercise of stock options as follows: Weighted average shares outstanding 7,814,174 7,814,174 Shares assumed issued upon conversion of debentures 1,051,316 Incremental shares outstanding assuming exercise of stock options using the treasury stock method 344,723 344,723 Shares issuable for retirement plan --------- --------- Average common and common equivalent shares outstanding (B) 8,158,897 9,210,213 ========= ========= Net earnings per common and common equivalent share (A/B) $.57 $.59 ==== ==== Notes: <FN> (1) Net earnings for the fully diluted calculation are adjusted for interest expense and deferred charge amortization, assuming exercise of the conversion privilege on the 8% convertible debentures. EXHIBIT 11 QUIXOTE CORPORATION AND SUBSIDIARIES Computation of Net Earnings Per Average Common and Common Equivalent Share For the Nine Months Ended March 31, 1994 ------------------------- Fully Primary Diluted ---------- ---------- Net earnings as reported $8,041,000 $8,041,000 Add interest expense and deferred charge amortization (net of income taxes) 735,000 (1) ---------- ---------- Adjusted net earnings for computation (A) $8,041,000 $8,776,000 ========== ========== Average common shares outstanding would be adjusted for the additional shares that would be issued assuming conversion of the debentures and exercise of stock options as follows: Weighted average shares outstanding 7,652,212 7,652,212 Shares assumed issued upon conversion of debentures 1,052,632 Incremental shares outstanding assuming exercise of stock options using the treasury stock method 371,784 383,701 Shares issuable for retirement plan 34,679 34,679 --------- --------- Average common and common equivalent shares outstanding (B) 8,058,675 9,123,224 ========= ========= Net earnings per common and common equivalent share (A/B) $1.00 $.96 ===== ==== Notes: <FN> (1) Net earnings for the fully diluted calculation are adjusted for interest expense and deferred charge amortization, assuming exercise of the conversion privilege on the 8% convertible debentures.