CLH vs. TTEK: Clean Harbors vs. Tetra Tech Stock Comparison

November 11, 2026

How do Clean Harbors (CLH) and Tetra Tech (TTEK) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

Clean Harbors (CLH) and Tetra Tech (TTEK) are both classified in the Environmental & Facilities Services sub-industry within the broader Commercial Services & Supplies industry, placing them in the closest GICS peer bucket.

Company profile comparison for Clean Harbors (CLH) and Tetra Tech (TTEK)
Profile Item	CLH	TTEK
Name	Clean Harbors, Inc.	Tetra Tech Inc.
Country/Region	United States	United States
GICS Sector	Industrials	Industrials
GICS Industry Group	Commercial & Professional Services	Commercial & Professional Services
GICS Industry	Commercial Services & Supplies	Commercial Services & Supplies
GICS Sub-Industry	Environmental & Facilities Services	Environmental & Facilities Services
Market Capitalization	14.98 billion USD	10.32 billion USD
Currency	USD	USD
Exchange	NYSE	Nasdaq
Listing Date	November 24, 1987	December 17, 1991
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

CLH

TTEK

GSPC

Clean Harbors (CLH) vs. Tetra Tech (TTEK), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

Loading price history…

Trailing total returns for Clean Harbors (CLH) and Tetra Tech (TTEK). Returns over one year are annualized.

Calendar-Year Returns

Loading price history…

Calendar-year total returns for Clean Harbors (CLH) and Tetra Tech (TTEK). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Clean Harbors (CLH) and Tetra Tech (TTEK)
Metric	CLH	TTEK
Total Return (1Y)	38.70%	29.45%
Total Return (3Y, Annualized)	22.86%	11.17%
Total Return (5Y, Annualized)	21.84%	3.89%

Risk Profile

Drawdown History

CLH

TTEK

GSPC

Clean Harbors (CLH) vs. Tetra Tech (TTEK), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

Loading price history…

Distribution of monthly total returns for Clean Harbors (CLH) and Tetra Tech (TTEK). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for Clean Harbors (CLH) and Tetra Tech (TTEK)
Metric	CLH	TTEK
Volatility (1Y, Annualized)	25.31%	37.39%
Beta (5Y)	0.87	0.84
Max Drawdown (5Y)	-30.86%	-47.50%
Avg. Volume (3M)	465.54K	2.25M

Risk-Adjusted Performance

Risk-Return Positioning

CLH and TTEK are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for Clean Harbors (CLH) and Tetra Tech (TTEK)
Metric	CLH	TTEK
Sharpe Ratio (1Y)	1.36	0.67
Sortino Ratio (1Y)	2.09	1.02

Profitability

ROE (TTM)

Both Clean Harbors (CLH) at 17.93% and Tetra Tech (TTEK) at 24.30% land near their industries’ usual ROE ranges, so capital efficiency looks broadly in line with peers on both sides.

CLH

Commercial & Professional Services industry group

17.93%

Max: 47.06%
Q3: 25.43%
CLH: 17.93%
Median: 14.11%
Q1: 3.92%
Min: -20.15%

TTEK

Commercial & Professional Services industry group

24.30%

Max: 47.06%
Q3: 25.43%
TTEK: 24.30%
Median: 14.11%
Q1: 3.92%
Min: -20.15%

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their ROE against the Commercial & Professional Services industry group benchmark.

Net Margin (TTM)

Both Clean Harbors (CLH) at 8.05% and Tetra Tech (TTEK) at 10.00% keep about the typical share of revenue as profit for their industries — neither bottom line stands out from peers.

CLH

Commercial & Professional Services industry group

8.05%

Max: 23.28%
Q3: 11.35%
CLH: 8.05%
Median: 5.65%
Q1: 0.87%
Min: -8.60%

TTEK

Commercial & Professional Services industry group

10.00%

Max: 23.28%
Q3: 11.35%
TTEK: 10.00%
Median: 5.65%
Q1: 0.87%
Min: -8.60%

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their net margin against the Commercial & Professional Services industry group benchmark.

Operating Margin (TTM)

Both Clean Harbors (CLH) at 17.02% and Tetra Tech (TTEK) at 14.25% run core operations about as efficiently as their industries’ norm — neither stands out on operating profitability.

CLH

Commercial & Professional Services industry group

17.02%

Max: 38.50%
Q3: 18.84%
CLH: 17.02%
Median: 10.40%
Q1: 5.59%
Min: -12.00%

TTEK

Commercial & Professional Services industry group

14.25%

Max: 38.50%
Q3: 18.84%
TTEK: 14.25%
Median: 10.40%
Q1: 5.59%
Min: -12.00%

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their operating margin against the Commercial & Professional Services industry group benchmark.

Profitability Metrics

Profitability metrics for Clean Harbors (CLH) and Tetra Tech (TTEK)
Metric	CLH	TTEK
ROE (TTM)	17.93%	24.30%
ROA (TTM)	6.94%	8.54%
Net Margin (TTM)	8.05%	10.00%
Operating Margin (TTM)	17.02%	14.25%
Gross Margin (TTM)	33.13%	21.84%

Growth

Revenue Growth

Both Clean Harbors (CLH) at 2.39% and Tetra Tech (TTEK) at 4.69% land near their industries' usual revenue growth ranges, so top-line momentum looks broadly in line with peers on both sides.

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their Revenue Growth across different time periods.

EPS Growth

Both Clean Harbors (CLH) at -1.89% and Tetra Tech (TTEK) at -24.39% land near their industries' usual EPS growth ranges, so bottom-line momentum looks broadly in line with peers on both sides.

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Clean Harbors (CLH) and Tetra Tech (TTEK)
Metric	CLH	TTEK
Revenue Growth (YoY)	2.39%	4.69%
Revenue Growth (3Y CAGR)	5.29%	15.81%
EPS Growth (YoY)	-1.89%	-24.39%
EPS Growth (3Y CAGR)	-1.25%	-1.46%

Financial Strength

Current Ratio (MRQ)

Both Clean Harbors (CLH) at 1.95 and Tetra Tech (TTEK) at 1.18 carry current ratio within their industries’ typical mid-ranges, suggesting balanced short-term liquidity relative to peers.

CLH

Commercial & Professional Services industry group

1.95

Max: 3.63
Q3: 2.14
CLH: 1.95
Median: 1.55
Q1: 1.09
Min: 0.45

TTEK

Commercial & Professional Services industry group

1.18

Max: 3.63
Q3: 2.14
Median: 1.55
TTEK: 1.18
Q1: 1.09
Min: 0.45

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their current ratio against the Commercial & Professional Services industry group benchmark.

Debt / Equity (MRQ)

Both Clean Harbors (CLH) at 1.08 and Tetra Tech (TTEK) at 0.55 fund their balance sheets with roughly industry-typical debt-to-equity mixes.

CLH

Commercial & Professional Services industry group

1.08

Max: 2.37
Q3: 1.25
CLH: 1.08
Median: 0.88
Q1: 0.35
Min: 0.00

TTEK

Commercial & Professional Services industry group

0.55

Max: 2.37
Q3: 1.25
Median: 0.88
TTEK: 0.55
Q1: 0.35
Min: 0.00

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their debt-to-equity ratio against the Commercial & Professional Services industry group benchmark.

Financial Strength Metrics

Financial strength metrics for Clean Harbors (CLH) and Tetra Tech (TTEK)
Metric	CLH	TTEK
Current Ratio (MRQ)	1.95	1.18
Debt / Equity (MRQ)	1.08	0.55
Net Debt / EBITDA	2.12	1.21

Dividends

Dividend Yield (TTM)

Clean Harbors (CLH) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Tetra Tech (TTEK) reports a yield of 0.66%, ranking against industry peers normally.

CLH

Commercial & Professional Services industry group

0.00%

Max: 4.33%
Q3: 1.80%
Median: 0.60%
CLH: 0.00%
Q1: 0.00%
Min: 0.00%

TTEK

Commercial & Professional Services industry group

0.66%

Max: 4.33%
Q3: 1.80%
TTEK: 0.66%
Median: 0.60%
Q1: 0.00%
Min: 0.00%

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their dividend yield against the Commercial & Professional Services industry group benchmark.

Dividend Payout Ratio (TTM)

Clean Harbors (CLH) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Tetra Tech (TTEK) reports a payout of 16.08%, ranking against industry peers normally.

CLH

Commercial & Professional Services industry group

0.00%

Max: 99.58%
Q3: 41.99%
Median: 17.27%
CLH: 0.00%
Q1: 0.00%
Min: -17.94%

TTEK

Commercial & Professional Services industry group

16.08%

Max: 99.58%
Q3: 41.99%
Median: 17.27%
TTEK: 16.08%
Q1: 0.00%
Min: -17.94%

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their payout ratio against the Commercial & Professional Services industry group benchmark.

Dividend Metrics

Dividend metrics for Clean Harbors (CLH) and Tetra Tech (TTEK)
Metric	CLH	TTEK
Dividend Yield (TTM)	0.00%	0.66%
Dividend Payout Ratio (TTM)	0.00%	16.08%

Valuation

P/E Ratio (TTM)

Both Clean Harbors (CLH) at 28.50 and Tetra Tech (TTEK) at 24.27 land around their industries’ usual P/E ratio levels — neither is getting a clear earnings-multiple discount or premium versus peers.

CLH

Commercial & Professional Services industry group

28.50

Max: 49.47
Q3: 33.76
CLH: 28.50
Median: 24.16
Q1: 16.01
Min: 1.89

TTEK

Commercial & Professional Services industry group

24.27

Max: 49.47
Q3: 33.76
TTEK: 24.27
Median: 24.16
Q1: 16.01
Min: 1.89

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their P/E ratio against the Commercial & Professional Services industry group benchmark.

P/S Ratio (TTM)

On P/S ratio, both Clean Harbors (CLH) at 2.28 and Tetra Tech (TTEK) at 2.37 are priced roughly in line with their industries — neither looks cheap nor rich on a sales basis.

CLH

Commercial & Professional Services industry group

2.28

Max: 7.17
Q3: 3.35
CLH: 2.28
Median: 1.33
Q1: 0.69
Min: 0.11

TTEK

Commercial & Professional Services industry group

2.37

Max: 7.17
Q3: 3.35
TTEK: 2.37
Median: 1.33
Q1: 0.69
Min: 0.11

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their P/S ratio against the Commercial & Professional Services industry group benchmark.

P/B Ratio (MRQ)

On P/B ratio, both Clean Harbors (CLH) at 4.81 and Tetra Tech (TTEK) at 5.57 are valued close to their industries’ norm against book — neither stands out from peers.

CLH

Commercial & Professional Services industry group

4.81

Max: 11.25
Q3: 6.08
CLH: 4.81
Median: 2.92
Q1: 1.55
Min: -2.78

TTEK

Commercial & Professional Services industry group

5.57

Max: 11.25
Q3: 6.08
TTEK: 5.57
Median: 2.92
Q1: 1.55
Min: -2.78

Clean Harbors (CLH) vs. Tetra Tech (TTEK): A comparison of their P/B ratio against the Commercial & Professional Services industry group benchmark.

Valuation Metrics

Valuation metrics for Clean Harbors (CLH) and Tetra Tech (TTEK)
Metric	CLH	TTEK
P/E Ratio (TTM)	28.50	24.27
P/S Ratio (TTM)	2.28	2.37
P/B Ratio (MRQ)	4.81	5.57
Free Cash Flow Yield (TTM)	2.76%	3.84%