1 EXHIBIT 11.01 ALUMAX INC. CALCULATION OF EARNINGS PER COMMON SHARE (IN MILLIONS, EXCEPT PER SHARE AMOUNTS) Three Months Ended Six Months Ended ------------------- ------------------ June 30, June 30, ---------------------- ------------------- 1996 1995 1996 1995 -------- ------- ------ ---- Primary earnings per common share 1. Net earnings . . . . . . . . . . . . . . . . . . $ 83.1 $ 39.2 $ 178.5 $ 149.6 2. Deduct - Series A Convertible Preferred dividends . . . . . . . . . . . . (2.4) (2.4) (4.7) (4.7) -------- ------- ------- -------- 3. Earnings applicable to common shares . . . . . . $ 80.7 $ 36.8 $ 173.8 $ 144.9 ======== ======= ======= ======== 4. Average primary shares outstanding . . . . . . . 45.7 45.1 45.6 45.0 ======== ======= ======= ======== 5. Primary earnings per common share (line 3 divided by line 4) . . . . . . . . . $ 1.77 $ .82 $ 3.81 $ 3.22 ======== ======= ======= ======== Fully diluted earnings per common share 6. Earnings applicable to common shares . . . . . . $ 80.7 $ 36.8 $ 173.8 $ 144.9 7. Add - Series A Convertible Preferred dividends . . (2.4) (2.4) (4.7) (4.7) -------- ------- ------- -------- 8. Earnings applicable to common shares . . . . . . $ 83.1 $ 39.2 $ 178.5 $ 149.6 ======== ======= ======= ======== 9. Average fully diluted shares outstanding . . . . 55.3 54.9 55.2 54.8 ======== ======= ======= ======== 10. Fully diluted earnings per common share (line 8 divided by line 9) . . . . . . . . . $ 1.50 $ .71 $ 3.23 $ 2.73 ======== ======= ======= ======== -19-