<PAGE>
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)
<TABLE>
<CAPTION>
Computations of Basic Earnings Per Common Three Months Ended Six Months Ended
Share for Statement of Operations: June 30, June 30,
-------------------------------------------------- ---------------------------------------------------------------------------
2000 1999 2000 1999
----------------- ----------------- ----------------- -----------------
<S> <C> <C> <C> <C>
Net income $ 46,662 $ 40,989 $ 87,383 $ 78,329
================= ================= ================= =================
Weighted average common shares outstanding 78,340,026 82,615,789 79,159,831 83,114,543
================= ================= ================= =================
Basic earnings per common share $ .60 $ .50 $ 1.10 $ .94
================= ================= ================= =================
Computation of Diluted Earnings Per Common
Share for Statements of Operations:
--------------------------------------------------
Net income $ 46,662 $ 40,989 $ 87,383 $ 78,329
================= ================= ================= =================
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 78,340,026 82,615,789 79,159,831 83,114,543
Net dilutive effect of:
Stock option plans 82,456 174,087 77,012 186,195
Restricted stock plans 587,035 447,965 513,436 366,183
----------------- ----------------- ----------------- -----------------
79,009,517 83,237,841 79,750,279 83,666,921
================= ================= ================= =================
Diluted earnings per common share $ .59 $ .49 $1.10 $ .94
================= ================= ================= =================
</TABLE>