** Shares of image-sharing platform Pinterest PINS.N slump 18.8% to $15.06 in premarket trading

** Co forecast Q1 revenue below Wall Street expectations on Thursday, citing sharper ad‑spending cuts by tariff‑hit retailers and growing competition from bigger rivals

** Morningstar says while PINS is investing in AI, especially in automated ad tools, it is unlikely to close its monetization gap with bigger rivals

** Expects Q1 revenue in the range of $951 million to $971 million, below the analysts' average estimate of $980.1 million

** 28 of 40 brokerages rate the stock "buy" or higher, 11 "hold" and 1 "sell"; their median PT is $34 - data compiled by LSEG

** As of last close, stock down 28.44% YTD

(Reporting by Kanishka Ajmera in Bengaluru)

((mail to: Kanishka.Ajmera@thomsonreuters.com))