Willdan's stock plummeted 13.12% in pre-market trading on Friday.
The decline follows the company's release of its financial results and outlook, which showed a 2026 adjusted diluted EPS guidance of USD 4.50 to USD 4.70, below the USD 4.89 achieved in 2025. This outlook disappointed investors despite the company reporting strong fourth quarter and full-year 2025 results, including a 143.4% surge in Q4 net income to USD 18.7 million.