(Reuters) -Pinterest’s fourth-quarter income forecast failed to provoke buyers searching for a spice up from the vacation buying groceries season, as larger on-line advert dealers in large part outperformed, sending its stocks down 12% in prolonged buying and selling on Thursday. The corporate additionally introduced a brand new inventory buyback program of as much as $2 billion and canceled the September 2023 program below which $500 million had been to be had for repurchase. Pinterest’s effects practice quarterly experiences via virtual advert bellwethers – together with Google-parent Alphabet, Meta Platforms, Reddit and Snap – which posted upbeat 3rd quarter income, helped via tough advert spending. Pinterest launched Efficiency+ suite in October to higher goal customers via improving advert campaigns with new AI equipment and automation options at the platform. “Efficiency+ continues to be within the early rollout segment, with many advertisers proscribing finances shifts and adoption of recent options throughout vacation height length,” CFO Julia Donnelly mentioned on a post-earnings name. The corporate could also be seeing “softness” amongst meals and beverage advertisers, Donnelly mentioned. Pinterest forecast fourth-quarter income between $1.13 billion and $1.15 billion, the midpoint of which was once in step with analysts’ moderate estimates of $1.14 billion, consistent with knowledge compiled via LSEG. The corporate’s income grew 18% to $898.4 million within the reported quarter, when put next with estimates of $896.4 million. Adjusted benefit consistent with proportion for the quarter got here in at 40 cents, when put next with estimates of 34 cents. World per month lively customers at the platform rose 11% to 537 million within the July-to-September length, when put next with estimates of 531.5 million. (Reporting via Jaspreet Singh in Bengaluru; Enhancing via Shailesh Kuber)