Opendoor's fundamentals don't quite line up with the incredible rally in its stock last year.Opendoor Technologies (OPEN 2.33%) stock delivered a return of 264% in 2025, but that only tells a small part of the story. The stock hit a record low of $0.51 in June before rocketing higher by more than 2,000%, to reach $10.87 by September, as retail investors whipped up a buying frenzy using social media platforms like Reddit and X (formerly Twitter).Opendoor operates in the real estate sector, so with the U.S. F ...