EXHIBIT 11.1 MGIC INVESTMENT CORPORATION AND SUBSIDIARIES STATEMENT RE COMPUTATION OF NET INCOME PER SHARE Three and Six Month Periods Ended June 30, 1998 and 1997 Three Months Ended Six Months Ended June 30, June 30, ------------------ ----------------- 1998 1997 1998 1997 ---- ---- ---- ---- (In thousands of dollars, except per share data) BASIC EARNINGS PER SHARE Average common shares outstanding 114,144 118,322 114,067 118,215 ======== ======== ======== ======== Net income $ 95,212 $ 80,615 $189,259 $153,051 ======== ======== ======== ======== Basic earnings per share $ 0.83 $ 0.68 $ 1.66 $ 1.29 ======== ======== ======== ======== DILUTED EARNINGS PER SHARE Adjusted shares outstanding: Average common shares outstanding 114,144 118,322 114,067 118,215 Net shares to be issued upon exercise of dilutive stock options after applying treasury stock method 1,569 1,272 1,660 1,258 -------- -------- -------- -------- Adjusted shares outstanding 115,713 119,594 115,727 119,473 ======== ======== ======== ======== Net income $ 95,212 $ 80,615 $189,259 $153,051 ======== ======== ======== ======== Diluted earnings per share $ 0.82 $ 0.67 $ 1.64 $ 1.28 ======== ======== ======== ========