FormFactor shares surge 14.57% after-hours on Q4 earnings beat and upbeat guidance.

FormFactor Inc. (FORM) surged 14.57% in after-hours trading following the release of its Q4 2025 earnings report, which exceeded expectations. The company reported earnings per share of $0.46, surpassing the $0.35 consensus estimate, while revenue reached $215.2 million, outperforming the projected $210.25 million. Strong results were accompanied by upbeat Q1 guidance, with adjusted EPS projected at $0.41–$0.49 (versus $0.32 expected) and revenue guidance of $220–$230 million (versus $203.53 million expected). These figures, combined with the stock’s prior decline during regular trading, prompted a post-market rebound as investors reacted positively to the company’s improved margins, robust demand for advanced packaging solutions, and strategic positioning in the semiconductor testing sector. Analysts also raised price targets, with Citi lifting its target to $96 from $62, reinforcing optimism about FormFactor’s growth trajectory.