Weibo's stock plummeted 5.87% in intraday trading on Wednesday, following the release of its fourth-quarter financial results that revealed significant profitability challenges and user decline.

The social media company reported a net loss attributable to shareholders of $4.7 million for the quarter, compared to a net income of $8.9 million in the same period last year. Non-GAAP net income fell to $66.4 million from $106.6 million year-over-year, with adjusted earnings per share of $0.25 missing analyst estimates.

Despite a 4% year-over-year increase in net revenues to $473.3 million, costs and expenses surged 13%, primarily due to increased ad production and marketing costs. This pressured operating margins, which contracted to 19% from 26% in the prior-year period. User metrics also weakened, with monthly active users declining to 567 million in December 2025 from 590 million a year earlier.