Washington Bancorp Exhibit 11 Computation of Earnings per Common Share For the three months ended December 31, For the six months ended December 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 Employee Stock Ownership Plan (ESOP) at the beginning of the period .................... (26,905) (32,066) (26,905) (32,066) (28,219) (33,283) (28,219) (33,283) Weighted average common shares released by the ESOP during the period ....................... 657 609 657 609 1,315 1,218 1,315 1,218 Weighted average common shares outstanding - Stock Option Plan .. -- -- 13,350 7,219 -- -- 12,596 7,302 Weighted average common shares into treasury .................... (140,415) (119,962) (140,415) (119,962) (136,388) (114,864) (136,388) (114,864) ------------------------------------------------------------------------------ Total average shares outstanding ....... 484,470 499,714 497,820 506,933 487,841 504,204 500,436 511,506 ============================================================================== Net income ............................. $317,821 $241,510 $317,821 $241,510 $627,671 $503,406 $627,671 $503,406 ============================================================================== Net income per share ................... $ 0.66 $ 0.48 $ 0.64 $ 0.48 $ 1.29 $ 1.00 $ 1.25 $ 0.98 ==============================================================================