EXHIBIT 11 COMPUTATION OF EARNINGS PER SHARE EXHIBIT 11 FIRST FINANCIAL CORPORATION COMPUTATION OF EARNINGS PER SHARE For The For The Three Months Ended Nine Months Ended September 30, September 30, ------------------ ---------------- 1996 1995 1996 1995 ------ ------- ------ ------ (In thousands, except per share data) PRIMARY EARNINGS PER SHARE Income (loss) before extraordinary item $(3,697) $17,793 $31,218 $44,925 Extraordinary item -- -- (686) -- ------- ------- ------- ------- Net income (loss) $(3,697) $17,793 $30,532 $44,925 ======= ======= ======= ======= Shares: Weighted average common shares outstanding 29,911 29,542 29,872 29,362 Shares from assumed exercise of options (as determined by the treasury stock method) 617 711 622 742 ------- ------- ------- ------- Common and common equivalent shares 30,528 30,253 30,494 30,104 ======= ======= ======= ======= Primary Earnings Per Common Share: Income (loss) before extraordinary item $ (0.12) $ .59 $ 1.02 $ 1.49 Extraordinary item -- -- (0.02) -- ------- ------- ------- ------- Net income (loss) $ (0.12) $ .59 $ 1.00 $ 1.49 ======= ======= ======= ======= FULLY DILUTED EARNINGS PER SHARE Income (loss) before extraordinary item $(3,697) $17,793 $31,218 $44,925 Extraordinary item -- -- (686) -- ------- ------- ------- ------- Net income (loss) $(3,697) $17,793 $30,532 $44,925 ======= ======= ======= ======= Shares: Weighted average common shares outstanding 29,911 29,542 29,872 29,362 Shares from assumed exercise of options (as determined by the treasury stock method) 636 794 657 902 ------- ------- ------- ------- Common and common equivalent shares 30,547 30,336 30,529 30,264 ======= ======= ======= ======= Fully Diluted Earnings Per Common Share: Income (loss) before extraordinary item $ (0.12) $ .59 $ 1.02 $ 1.48 Extraordinary item -- -- (0.02) -- ------- ------- ------- ------- Net income (loss) $ (0.12) $ .59 $ 1.00 $ 1.48 ======= ======= ======= =======