Proto Labs shares surge 27.3% after-hours after beating Q4 earnings and revenue estimates, with strong guidance for 2026 growth.

Proto Labs (PRLB) surged 27.31% in after-hours trading following its Q4 2025 earnings report, which exceeded revenue and adjusted EPS estimates. The company reported $136.5 million in revenue (12.1% YoY growth) and $0.44 adjusted EPS (27.9% beat), alongside 6–8% 2026 revenue guidance, surpassing analyst expectations. CEO Suresh Krishna highlighted expansion plans as a catalyst for accelerated growth, reinforcing investor optimism. Despite declining free cash flow and mixed long-term fundamentals, the strong earnings performance and upbeat guidance drove the sharp post-earnings rally.