Interactive Strength shares surge 40.85% intraday after raising 2025 revenue guidance to $4.5M Q4 and $20M full-year, driven by Wattbike acquisition and strong UK sales.

Interactive Strength Inc. surged 40.85% intraday after announcing preliminary fourth-quarter 2025 revenue expected to exceed $4.5 million, a 100% year-over-year increase, and projecting full-year 2025 pro forma revenue of over $20 million. The company attributed the growth to its July 2025 acquisition of Wattbike, which has driven 25-35% higher utilization in new product lines and strong UK commercial sales. Additionally, the extended maturity date of a $2.17 million convertible note and litigation progress against Sportstech were highlighted as strategic updates. Despite financial challenges such as weak gross margins and a low current ratio, the revenue guidance and operational milestones aligned with the stock's sharp intraday rally.