Pinterest may follow Lyft and Uber to the public markets in the first half of 2019.: Pinterest may follow Lyft and Uber to the public markets in the first half of 2019, according to a report from The Wall Street Journal. The visual search engine and shopping tool is expected to tap underwriters in January and complete an initial public offering as soon as April. The company was valued at just over $12 billion with its last private fundraise, a $150 million round in mid-2017, and is on pace to bring in $700 million in revenue this year.