The food-delivery company’s shares opened at US$182 on the New York Stock Exchange, up from the initial public offering price of US$102, and reached an intraday trading high of US$195.50. (Reuters)

Talking point: The public offering puts DoorDash’s fully diluted valuation at US$68.4 billion. It was valued at US$16 billion in a June private fundraising round. The company raised US$3.37 billion in its IPO and turned its three founders, at the time Stanford university students, into billionaires. (A fourth cofounder left the company 17 months after helping to start it, to work at another startup.) Meanwhile, Airbnb is now expected to raise its targeted share-price range again, sources told The Wall Street Journal. It increased the range earlier this week to between US$56 and US$60 a share, and is expected to set a price Wednesday before trading starts Thursday. The platform has warned prospective investors it faces the challenge of managing unfavourable local laws as neighbours fight back against short-term rentals in their communities.