Interactive Strength shares surge 59.62% intraday after raising 2025 revenue guidance and successful Wattbike acquisition driving growth.

Interactive Strength Inc. (NASDAQ: TRNR) surged 59.62% intraday after announcing preliminary Q4 2025 revenue is expected to exceed $4.5 million, a 100% year-over-year increase, and full-year 2025 pro forma revenue of over $20 million. The company attributed the growth to the acquisition of Wattbike, strong UK sales of its Air-Pro product line, and a 25–35% higher utilization rate in its equipment. Strategic expansion in Europe and the successful integration of Wattbike were highlighted as key drivers, with CEO Trent Ward emphasizing the "demonstrably working" commercial strategy. While the firm noted financial challenges such as weak gross margins, the upbeat revenue guidance and operational progress fueled investor optimism, aligning with the sharp intraday price rise.