Washington Bancorp Computation of Loss per Common Share Three Months Ended September 30, 1997 Exhibit 11 Computation of weighted average number of common shares outstanding: Common shares outstanding at the beginning of the period ....... 651,133 Unreleased common shares held by the Employee Stock Ownership Plan (ESOP) at the beginning of the period ................... (46,333) Weighted average common shares released by the ESOP during the period ....................................................... 483 Weighted average common shares equivalent of dilutive Effect of Stock options ...................................... 15,840 --------- Weighted average number of common shares ....................... 621,123 ========= Net income .................................................. $ 157,220 ========= Net income per common share ................................. $ 0.25 =========