** Deutsche Bank downgrades rating of defense contractor Lockheed Martin to "hold" from "buy"

** Brokerage says LMT's Q3 results contradict its upgraded thesis and long-term outlook for F-35 fighter jet orders is challenging, given China's recent advancements in combat aircraft

** 12 brokerages rate the stock "buy" or higher, 11 "hold" and 1 "sell"; their median PT is $605 - LSEG data

** Stock rose 6.5% in 2024

(Reporting by Aatreyee Dasgupta)

((Aatreyee.Dasgupta@thomsonreuters.com))