Exhibit 11 - Computation of Earnings Per Common Share TCF FINANCIAL CORPORATION AND SUBSIDIARIES Computation of Earnings Per Common Share (Dollars in thousands, except per-share data) (Unaudited) Computations of Basic Earnings Per Common Three Months Ended Nine Months Ended Share for Statement of Operations: September 30, September 30, - ------------------------------------------------------ --------------------------------------------------------------------------- 2000 1999 2000 1999 ----------------- ----------------- ----------------- ----------------- Net income $ 46,697 $ 42,760 $ 134,080 $ 121,089 ================= ================= ================= ================= Weighted average common shares outstanding 78,212,563 82,069,575 78,844,075 82,766,220 ================= ================= ================= ================= Basic earnings per common share $ .60 $ .52 $ 1.70 $ 1.46 ================= ================= ================= ================= Computation of Diluted Earnings Per Common Share for Statements of Operations: - ------------------------------------------------------ Net income $ 46,697 $ 42,760 $ 134,080 $ 121,089 ================= ================= ================= ================= Weighted average number of common shares outstanding adjusted for effect of dilutive securities: Weighted average common shares outstanding used in basic earnings per common share calculation 78,212,563 82,069,575 78,844,075 82,766,220 Net dilutive effect of: Stock option plans 129,805 167,493 94,610 179,961 Restricted stock plans 698,855 514,379 575,242 415,581 ----------------- ----------------- ----------------- ----------------- 79,041,223 82,751,447 79,513,927 83,361,762 ================= ================= ================= ================= Diluted earnings per common share $ .59 $ .52 $ 1.69 $ 1.45 ================= ================= ================= =================