回复@ChicagoTiger: //@ChicagoTiger:回复@梁剑:看电话会议记录，CFO是这样说收入增速下滑的“Turning now to the revenue outlook, our total revenue growth rate decelerated approximately seven percentage points in Q2 compared to Q1. Our total revenue growth rates will continue to decelerate in the second half of 2018, and we expect our revenue growth rates to decline by high single-digit percentages from prior quarters sequentially in both Q3 and Q4”-所以从42%的营收，Q3和Q4分别要下降7-8%个点，所以年底收入增速会到25%左右。
除此之外，CFO还说了“ Looking beyond 2018, we anticipate that total expense growth will exceed revenue growth in 2019. Over the next several years, we would anticipate that our operating margins will trend towards the mid-30s on a percentage basis” 注意这个季度FB的operating marign还有42%
两者叠加起来，20%-25%的收入增速，加上10%年化的利润率下跌（35/42）^(1/2)-1,净利润增速应该在10-15%左右。这样一个股票估值应当是多少就是见仁见智的问题了。