Tetra Tech, Inc.
Tetra Tech, Inc. (TTEK) PE Ratio — Current & Historical Data
Trailing twelve months (TTM) P/E, forward P/E, PEG, and annual PE history — from market prices and filings.
ttek · pe ratio · data through Sep 28, 2025
Core PE Ratio Metrics
Trailing 12 months · TTMThe price-to-earnings (P/E) ratio for Tetra Tech, Inc. (TTEK) measures how much investors pay for each dollar of the company's trailing earnings. TTEK's current PE ratio of 16.30x is calculated by dividing its stock price of $27.59 by its TTM earnings per share of $1.69. −50.4% discount vs 5Y avg 32.9x
Source: FMP · /ratios-ttm · /analyst-estimates · 2025-09-28
PE Ratio History
2006 – 2025 · Annual▸ FMP /ratios?period=annual&limit=20 · priceToEarningsRatio + netIncomePerShare (Annual)
Historical PE Range
Past 19 fiscal years · Front-end computedMinQ1 · 25%27.3x
MedianQ3 · 75%37.9x
Max
At 16.30x, TTEK's current P/E is lower than in 16% of its annual fiscal year readings over the past 19 years — historically low.
Percentile calculated from annual fiscal year data points, not by trading day. Years where PE ≤ 0 or > 9,999 are excluded.
PE Ratio vs Peers
Engineering & Construction · 6 peers · Annual PE| Company | Market Cap | PE (Annual) | vs Avg | EPS (TTM) |
|---|---|---|---|---|
Tetra Tech, Inc.You TTEK | $7.2B | 16.30x | -56.0% | $1.69 |
 AAON, Inc. AAON | $10.8B | 57.78x | +55.8% | $1.32 |
 Armstrong World Industries, Inc. AWI | $6.5B | 26.99x | -27.2% | $7.08 |
 CAE Inc. CAE | $8.1B | 37.08x | -0.0% | $0.98 |
 Dycom Industries, Inc. DY | $13.8B | 37.65x | +1.6% | $9.68 |
 Fluor Corporation FLR | $6.9B | N/A | — | -$0.30 |
 IES Holdings, Inc. IESC | $14.6B | 25.89x | -30.2% | $15.36 |
Industry Average 5 peers with valid PE | — | 37.08x | baseline | — |
* N/A — Company is not profitable (TTM) · excluded from industry average · ▸ FMP /stock-peers + /ratios?limit=1 · priceToEarningsRatio
Annual PE Ratio History
| Fiscal Year End | PE Ratio | EPS (TTM) | YoY Change | PE vs Max |
|---|---|---|---|---|
2025-09-28Latest FY2025 | 35.94x | $0.94 | -5.0% | |
2024-09-30 FY2024 | 37.82x | $1.25 | +27.8% | |
2023-09-30 FY2023 | 29.59x | $1.03 | +12.9% | |
2022-09-30 FY2022 | 26.20x | $0.98 | -24.5% | |
2021-09-30 FY2021 | 34.69x | $0.86 | +16.4% | |
2020-09-30 FY2020 | 29.79x | $0.64 | -0.9% | |
2019-09-30 FY2019 | 30.06x | $0.58 | +8.5% | |
2018-09-30 FY2018 | 27.70x | $0.49 | +23.2% | |
2017-09-30 FY2017 | 22.47x | $0.41 | -8.7% | |
2016-09-30 FY2016 | 24.62x | $0.29 | -35.0% |
▸ FMP /ratios?period=annual&limit=20 · priceToEarningsRatio + netIncomePerShare · Zero extra API
About PE Ratio & Methodology
The price-to-earnings (P/E) ratio for Tetra Tech, Inc. (TTEK) measures how much investors pay for each dollar of the company's trailing earnings. TTEK's current PE ratio of 16.30x is calculated by dividing its stock price of $27.59 by its TTM earnings per share of $1.69.
Frequently asked questions
TTEK pe ratio · 6 questionsTTEK's current PE ratio is 16.30x as of 2026-06-08, based on a stock price of $27.59 and TTM EPS of $1.69. Data sourced from Financial Modeling Prep via TTEK's SEC 10-K and 10-Q filings.
▸ Source: FMP · /ratios-ttm · /ratios annual · /analyst-estimates · /stock-peers · Tetra Tech, Inc. SEC 10-K & 10-Q filings · US GAAP · Updated: 2026-06-08