Tetra Tech Inc (TTEK)

Debt-to-equity ratio

Sep 30, 2025 Sep 30, 2024 Sep 30, 2023 Sep 30, 2022 Sep 30, 2021
Long-term debt US$ in thousands
Total stockholders’ equity US$ in thousands 1,779,780 1,830,320 1,403,430 1,183,090 1,234,240
Debt-to-equity ratio 0.00 0.00 0.00 0.00 0.00

September 30, 2025 calculation

Debt-to-equity ratio = Long-term debt ÷ Total stockholders’ equity
= $—K ÷ $1,779,780K
= 0.00