ThredUp shares surge 11.00% premarket on strong Q3 revenue growth, AI-driven engagement, and positive EBITDA amid improved margins.

ThredUp Inc. (TDUP) surged 11.00% in premarket trading following the release of its Q3 2025 earnings results, which showed revenue of $82.16 million—33.6% year-over-year growth and a 5.9% beat—alongside improved operating margins and positive adjusted EBITDA. Management highlighted strong new customer acquisition, AI-driven product launches (Daily Edit, Trend Report), and robust performance from the Premium Kit channel as key growth drivers. Additionally, a separate Chinese report underscored record revenue, 26% active buyer growth, and a narrowed operating loss, signaling progress toward profitability. While CEO James Reinhart’s insider share sale could raise questions, the stock’s premarket rally reflects optimism around the company’s strategic initiatives, AI adoption, and resilient revenue trajectory.