** Shares of Apple AAPL.O fall 1% to $242.67 premarket
** MoffettNathanson downgrades stock to "sell" from "neutral", trims PT to $188 from $202, and says market is "overly dismissive" of the risks to the stock
** Analyst Craig Moffett says Apple's success in AI is already fully priced in
** Other risks to AAPL include anti-trust case against Alphabet that threatens Apple's $25 bln annual search payments from Google, and its prospects in China, partly due to intensifying competition - Moffett
** Craig Moffett is rated 2 out of 5 stars for estimate accuracy and 1 out of 5 stars for recommendation accuracy - LSEG
** MoffettNathanson is one of only two out of the 49 brokerages covering AAPL that have "sell"-equivalent rating - LSEG
** 34 brokerages rate it "buy" or higher and 13 "hold"; median PT at $250 which is 2% higher than stock's last close
** At last price, AAPL's market value was at $3.66 trillion, conceding its title of the world's most valuable company to Nvidia NVDA.O which was last valued at $3.75 trillion
(Reporting by Medha Singh)
((medha.singh@thomsonreuters.com))