NXP Semiconductors NV (NXPI) experienced a sharp decline of 6.36% in post-market trading following the release of its fourth quarter and full-year 2025 financial results.

The chipmaker reported Q4 revenue of $3.34 billion, exceeding the FactSet consensus estimate of $3.31 billion, and adjusted EPS of $3.35, beating the IBES estimate of $3.27. However, the company's full-year 2025 net revenue declined by 2.7% year-over-year to $12.27 billion. Furthermore, NXP provided its Q1 2026 revenue guidance in a range of $3.05 billion to $3.25 billion, with the midpoint slightly above but the lower end below the FactSet estimate of $3.10 billion.

Investors reacted negatively to the combination of the annual revenue contraction and what may be perceived as cautious near-term guidance, leading to the significant after-hours sell-off. The market movement also follows the recent completion of STMicroelectronics' acquisition of NXP's MEMS sensors business, a deal that strengthens ST's position in automotive and industrial markets.