Washington Bancorp Computation of Earnings per Common Share Exhibit 11 For the three months ended September 30, ----------------------------------------------- 2000 1999 2000 1999 Basic Basic Diluted Diluted EPS EPS EPS EPS ------- -------- ------- ------- Computation of weighted average number of common shares outstanding: Common shares outstanding at the beginning of the period ........................ 651,133 651,133 651,133 651,133 Unreleased common shares held by the Employee Stock Ownership Plan (ESOP) at the beginning of the period ......................................... (33,283) (37,972) (33,283) (37,972) Weighted average common shares released by the ESOP during the period ............................................ 609 564 609 564 Weighted average common shares outstanding - Stock Option Plan ....................... -- -- 7,466 10,001 Weighted average common shares into treasury ......................................... (109,766) (51,913) (109,766) (51,913) --------- --------- --------- --------- Total average shares outstanding ........................... 508,693 561,812 516,159 571,813 ========= ========= ========= ========= Net income ............................................ $ 259,348 $ 222,764 $ 259,348 $ 222,764 ========= ========= ========= ========= Net income per share .................................. $ 0.51 $ 0.40 $ 0.50 $ 0.39 ========= ========= ========= =========