An IPO filing from the six-year-old start-up, best known for its $109,000 all-electric Roadster, is expected any day, said one of the sources. The person did not give a specific time frame, although IPOs typically take several months.


Tesla spokesman Ricardo Reyes declined to comment on what he called "rumor or speculation."

Tesla would mark the first public offering from a U.S. automaker since Henry Ford's Ford Motor Co debuted its shares in 1956. The IPO represents a landmark in the resurgence of electric car technology that most carmakers had dismissed as impractical until recently.