MIDSOUTH BANCORP, INC. AND SUBSIDIARIES EXHIBIT 11 COMPUTATION OF EARNINGS PER SHARE (Unaudited) FOR THE THREE AND SIX MONTHS ENDED JUNE 30, 2004 AND 2003 Second Quarter Second Quarter Year-to-Date Year-to-Date June 30, June 30, June 30, June 30, BASIC 2004 2003 2004 2003 _____________ _____________ ____________ ____________ Earnings: Income applicable to common stock $1,745,367 $1,624,141 $3,406,315 $2,933,693 =========== =========== =========== =========== Shares: Weighted average number of common shares outstanding 3,190,830 3,179,256 3,187,575 3,179,256 =========== =========== =========== =========== Earnings per common share: Income applicable to common $0.55 $0.51 $1.07 $0.92 =========== =========== =========== =========== DILUTED Earnings: Net income $1,745,367 $1,624,141 $3,406,315 $2,933,693 =========== =========== =========== =========== Weighted average number of common shares outstanding 3,190,830 3,179,256 3,187,575 3,179,256 Assuming exercise of options, reduced by the number of shares which could have been purchased with the proceeds from exercise of such options at the average issue price 143,519 119,855 145,461 110,324 __________ ___________ ___________ __________ Weighted average number of common shares outstanding, as adjusted 3,334,349 3,299,111 3,333,036 3,289,580 ========== =========== =========== ========== Fully diluted earnings per common share $0.52 $0.49 $1.02 $0.89 ========== =========== =========== ==========