For what it's worth, the fourth-quarter analyst view expected Twilio's revenue growth to match the rate of expansion seen in the third quarter. The actual guidance points to a slightly slower year-over-year growth rate of roughly 68%. This provider of corporate communications tools that businesses can add to their in-house systems and processes is barely profitable, and its market value is largely based on the prospect of continued hypergrowth. Therefore, any sign of a slowdown can give Twilio's stock a drastic haircut.