Sara Salinas, CNBC.com’s Posts

Lyft’s market debut offers something of a gut check for Uber, Slack and Pinterest.

Lyft claimed 39 percent of the U.S. ride-hailing market at the end of 2018.

Lyft’s major shareholders will collectively hold billions in value when the company debuts.

HBO has long positioned itself as the premium content option in an increasingly crowded streaming space.

The numbers are a boon for Amazon’s growing advertising segment, which offers a third stream of revenue for the company apart from its e-commerce and cloud businesses.