Shares of Twilio surged 11.4% in Wednesday's extended market session after the cloud communications platform company surprised investors with posting a profit in the fourth quarter. The company reported non-GAAP diluted earnings per share (EPS) of $0.04 in 4Q when analysts were expecting a loss of $0.08 per share. Revenues came in at $548.1 million, up by 65% year-on-year, and beating consensus estimates of $454.7 million. Twilio’s (TWLO) CEO, Jeff Lawson, said, “Twilio's 65% year-over-year total revenue growth in the fourth quarter continued the strength and momentum we saw throughout an outstanding year of results in which we delivered $1.76 billion in revenue.