Ketu in 9th house in the horoscope is not a good signal as it brings negative results to the natives. Vedic astrology said that Ketu is a planet that is often misunderstood. It is considered to be a planet of wisdom. It can also be a planet of problems and disharmony. Ketu is known to cause problems in relationships, health, and finance.
Article source: https://www.guruji.life/blog/ketu-in-9th-house/