** Shares of image-sharing platform Pinterest PINS.N rise 15.4% premarket
** Co forecast second-quarter revenue above analysts' estimates on Monday, betting on steadily growing spending by advertisers
** Zephirin Group upgrades stock rating to 'buy' from 'sell'; raises PT to $30 from $17
** Brokerage sees "PINS increasingly integrating its legacy monetization model into an AI-driven advertising landscape, supporting longer-term growth while gradually easing near-term headwinds"
** Following the results, at least five brokerages raised PT on the stock, according to data compiled by LSEG
** Q1 revenue rose 18% to $1.01 billion, above estimates of $966.25 million
** 39 analysts rate the stock "buy" on average; median price target $24- data compiled by LSEG
** Up to last day's close, the stock had fallen nearly 19% YTD
(Reporting by Akriti Shah in Bengaluru)
((akriti.shah@thomsonreuters.com ; X, formerly Twitter: @AkritiShahh)))