ENGINEERED SUPPORT SYSTEMS, INC.
EXHIBIT 11 - STATEMENT RE: COMPUTATION OF EARNINGS PER SHARE
Year Ended
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1999 1998 1997
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NET INCOME $7,309,291 $5,789,381 $4,638,946
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BASIC EARNINGS PER SHARE
Average basic shares outstanding 5,926,234 4,785,335 4,753,265
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Net income $1.23 $1.21 $0.98
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DILUTED EARNINGS PER SHARE
Average basic shares outstanding 5,926,234 4,785,335 4,753,265
Net effect of dilutive stock options<F1> 155,410 206,118 201,522
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Average diluted shares outstanding 6,081,644 4,991,453 4,954,787
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Net income $1.20 $1.16 $0.94
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<FN>
<F1> Based on the treasury stock method
NOTE: On June 26, 1998, the Company effected a 3-for-2 stock split in
the form of a 50% stock dividend. All share and per share amounts
included on this schedule reflect this stock split.