Only one U.S. tech stock has outperformed Zoom this year, and there’s a good chance you’ve never heard of it.

This company is a 22-year-old mobile phone software provider based in Austin, Texas, and has climbed 573% in 2020, topping Zoom’s 487% gain, as of Tuesday’s close. The company’s market cap started the year at a little over $600 million. It’s now $4.3 billion. FIND OUT WHICH TECH COMPANY IS RAISING EYEBROWS