EXHIBIT 11 YAHOO! INC. Computation of Net Income (Loss) per Share Three Months Ended Nine Months Ended --------------------------------- -------------------------------- September 30, September 30, September 30, September 30, 1997 1996 1997 1996 --------------- ---------------- --------------- --------------- Net income (loss) $1,637,000 ($1,145,000) ($18,697,000) ($2,430,000) --------------- ---------------- --------------- --------------- --------------- ---------------- --------------- --------------- Weighted average number of Common 42,749,000 39,756,000 41,742,000 36,140,000(a) shares used in computation: Common stock options and warrants using the modified treasury method 7,347,000 - - - --------------- ---------------- --------------- --------------- Total 50,096,000 39,756,000 41,742,000 36,140,000 --------------- ---------------- --------------- --------------- --------------- ---------------- --------------- --------------- Net income (loss) per common and common equivalent share $0.03 ($0.03) ($0.45) ($0.07) --------------- ---------------- --------------- --------------- --------------- ---------------- --------------- --------------- (a) Common equivalent shares are excluded from the computation as their effect is antidilutive, except that for the nine month period ended September 30, 1996, pursuant to the Securities and Exchange Commission Staff Accounting Bulletin, the convertible preferred stock (using the if-converted method) and common equivalent shares (using the treasury stock method and the public offering price) issued subsequent to March 5, 1995 through April 11, 1996 have been included in the computation as if they were outstanding for the entire period.