Pinterest’s IPO also revealed the profile of its average user, a profile the company will need to expand in its quest for continued growth. Pinterest is one of many tech companies expected to IPO this year. Video-conferencing company Zoom filed its own prospectus on March 22, and Lyft filed earlier this month. Others anticipated in 2019 include Slack, Robinhood, Airbnb, Cloudflare, Instacart, Uber, and WeWork.