Washington Bancorp Computation of Earnings per Common Share Exhibit 11 For the three months ended March 31, For the nine months ended March 31, ------------------------------------- -------------------------------------- 2001 2000 2001 2000 2001 2000 2001 2000 Basic Basic Diluted Diluted Basic Basic Diluted Diluted EPS EPS EPS EPS EPS EPS EPS EPS ------------------------------------------------------------------------------- Computation of weighted average number of common shares outstanding: Common shares outstanding at the beginning of the period ............ 651,133 651,133 651,133 651,133 651,133 651,133 651,133 651,133 Unreleased common shares held by the Employee Stock Ownership Plan (ESOP) at the beginning of the period ............................. (30,848) (35,718) (30,848) (35,718) (33,283) (37,972) (33,283) (37,972) Weighted average common shares released by the ESOP during the period ................................ 657 609 657 609 1,875 1,736 1,875 1,736 Weighted average common shares outstanding - Stock Option Plan ........... -- -- 8,173 6,786 -- -- 7,013 9,179 Weighted average common shares into treasury ............................. (136,162) (74,261) (136,162) (74,261) (121,903) (60,182) (121,903) (60,182) ------------------------------------------------------------------------------- Total average shares outstanding ................ 484,780 541,763 492,953 548,549 497,822 554,715 504,835 563,894 =============================================================================== Net income ...................................... $281,808 $ 285,278 $281,808 $285,278 $785,215 $786,554 $785,215 $786,554 =============================================================================== Net income per share ............................ $ 0.58 $ 0.53 $ 0.57 $ 0.52 $ 1.58 $ 1.42 $ 1.56 $ 1.39 ===============================================================================