EXHIBIT 11 CALCULATION OF BASIC AND FULLY DILUTED EARNINGS PER SHARE (in thousands except per share data) BASIC EARNINGS PER SHARE 1998 1997 1996 Net income $27,611 $10,951 $5,147 Weighted average number of shares outstanding 16,703 10,434 5,670 ------- ------- ------ Net income per share - Basic $ 1.65 $ 1.05 $ 0.91 ======= ======= ====== DILUTED EARNINGS PER SHARE 1998 1997 1996 Net income $27,611 $10,951 $5,147 Add-interest on short-term debt, net of tax effect, on application of assumed proceeds from exercise of options and warrants in excess of 20% limitation 0 0 0 ------- ------- ------ Net income, as adjusted $27,611 $10,951 $5,192 Additional adjustment to weighted average number of shares outstanding: Weighted average number of shares outstanding 16,703 10,434 5,670 Add-Dilutive effect of outstanding options and warrants (as determined by the application of the treasury stock method) 565 2,640 2,601 ------- ------- ------ Weighted average number of shares outstanding 17,268 13,074 8,271 Net income per share - diluted $ 1.60 $ 0.84 $ 0.62 ======= ======= ======