EXHIBIT 12
IDX SYSTEMS CORPORATION
SCHEDULES OF NET INCOME PER SHARE AND
PRO FORMA NET INCOME PER SHARE
(IN THOUSANDS, EXCEPT FOR PER SHARE DATA)
PRIMARY FULLY DILUTED
NINE MONTHS ENDED NINE MONTHS ENDED
SEPTEMBER 30, SEPTEMBER 30,
1996 1995 1996 1995
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Weighted average shares 20,661 14,170 20,661 14,170
outstanding
Net dilutive effect of stock options-
based on the treasury stock method
using the IPO price until the effective
date and average price thereafter for
primary and ending price, if higher,
for fully diluted 726 1,289 726 1,289
Effect of final S corporation
distribution 1,789 1,789
Effect of common and common
stock equivalent shares issued by
the Company during the twelve
month period immediately
preceding the Company's initial
public offering in November 1995,
as if they were outstanding for all
periods presented prior to the initial
public offering, using the treasury
stock method, as described above 192 192
------ ------- ------- -------
Total shares 21,387 17,440 21,387 17,440
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Net income $10,638 $10,638
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Net income per share $ 0.50 $0.50
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Pro forma net income $ 6,899 $ 6,899
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Pro forma net income per share $ 0.40 $0.40
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