At the onset of the pandemic, Motley Fool contributors Brian Feroldi and Brian Stoffel ran a company called Digital Turbine (APPS 6.50%) through their respective frameworks. It didn't do well.

Fast-forward 18 months and the stock had returned 1,500%. Obviously, these two were missing something. This has been one of the market's greatest tech growth stocks. In fact, despite the run-up, some investors believe the company is still getting started.

Upon closer examination, both Brians understood the bull case far better. In fact, the company has completely transformed in the past year. But one risk looms large. Watch the video below for the details.