SoFi (SOFI 1.97%) recently reported fourth-quarter earnings that were extremely impressive. But there's one number that I'm most excited about, and it isn't any of the headline stats. In this short video, I run down the highlights of the quarter and the most important number for investors to watch. 

*Stock prices used were the afternoon prices of Jan. 31, 2023. The video was published on Jan 31, 2023.