Primoris Services Corporation's stock experienced a significant 5.22% decline in extended trading, following the release of its fourth quarter and full year 2025 financial results.

The infrastructure services firm reported quarterly results that exceeded analyst expectations, with Q4 revenue of $1.90 billion beating estimates and adjusted earnings per share of $1.08 surpassing the consensus of $0.99. However, the market reaction was negative due to increased costs on certain renewables projects within its Energy segment, which impacted operating income. Additionally, lower storm restoration work contributed to the pressure on results, and adjusted earnings declined from $1.13 per share in the same quarter last year.

The company issued guidance for 2026 adjusted EPS between $5.80 and $6.00, compared to the FactSet estimate of $5.87, placing the midpoint slightly above expectations. Despite this outlook, investor concerns over project cost pressures and the year-over-year earnings decline drove the selloff in the extended session.