CEO Logan Green and his team will get an opportunity to update that earnings outlook when Lyft announces its fiscal fourth-quarter results on Feb. 11. Executives said back in October that sales should rise by about 47% for the period, which would translate into 66% growth for the full year. The stock's trajectory in 2020 will be heavily influenced by the path that Lyft's expansion pace takes from there, and whether the growth stock can demonstrate an ability to generate profits in a tough industry.