EXHIBIT 11 IBAH, INC. AND SUBSIDIARIES COMPUTATION OF NET INCOME (LOSS) PER SHARE (unaudited) FOR THE THREE FOR THE THREE MONTHS ENDED MONTHS ENDED COMPUTATION OF PRIMARY SEPTEMBER 30, SEPTEMBER 30, NET INCOME (LOSS) PER SHARE: 1996 1997 - ---------------------------------------- ---------------------- ---------------------- Net Income Applicable to Common Stockholders $ 40,000 $ 709,000 ====================== ====================== Weighted Average Number of Common Shares Outstanding 18,498,000 23,139,000 Assumed Conversion of Preferred Stock 2,249,000 2,072,000 Assumed Conversion of Options and Warrants 4,336,000 2,249,000 ---------------------- ---------------------- 25,083,000 27,460,000 ====================== ====================== Primary Net Income per Share $ - $ 0.03 ====================== ====================== Fully-diluted net income per common share for the three months ended September 30, 1996 and 1997 is the same as primary net income per common share calculated above. A calculation for the nine month periods ended September 30, 1996 and 1997 has not been presented since the effect of any preferred stock conversion, and the effect of option and warrant exercises would be anti-dilutive. -20-