Pinterest, Inc. (PINS) experienced a significant 24-hour plunge of 13.97%, with the sharp decline occurring in post-market trading following the release of its fourth-quarter financial results.

The image-sharing platform reported adjusted earnings per share of $0.67, missing the consensus estimate of $0.69. Revenue for the quarter reached $1.32 billion, also falling short of the $1.33 billion analysts expected. More critically, the company issued disappointing guidance for the current quarter, forecasting revenue between $951 million and $971 million, well below the average estimate of $980.1 million.

The weak performance and outlook are attributed to a pronounced pullback in advertising spending, particularly from large retailers who are protecting their margins amid tariff-related economic pressures. Furthermore, Pinterest faces intensifying competition for digital ad dollars from social media giants like TikTok and Meta's Instagram and Facebook, which leverage massive user bases and advanced AI-powered advertising tools that continue to attract marketers.