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Clean Harbors Inc (CLH) stock

CLHNYSEHazardous Waste ManagementFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 28, 2026Score 14/3024% above fair value
$293.84+3.82 (+1.32%)

Close on Nov 12, 2026Market cap $15.49BP/E 29.5Yield –

Clean Harbors Inc grew revenue 10.1% to $6.56B over the twelve months to Sep 30, 2026. Operating income rose 32.6% to $864.39M, moving the operating margin from 10.9% to 13.2%. Free cash flow was $500.54M, up 11.2% from a year earlier. At the latest close the market valued the company at $15.49B, 29.5 times its earnings.

Revenue
$6.56B
+10.1% vs. a year earlier
Operating income
$864.39M
+32.6% vs. a year earlier
Free cash flow
$500.54M
+11.2% vs. a year earlier
EPS, diluted
$9.97
+38.3% vs. a year earlier

Key statistics

Valuation at the latest close; fundamentals over the trailing twelve months, balances at Sep 30, 2026

Valuation

Market cap
$15.49B
P/E ratio
29.5
Price to sales
2.36
Price to book
4.97
Dividend yield
–
Free cash flow yield
3.23%

Fundamentals

Revenue
$6.56B
Net income
$528.36M
EPS, diluted
$9.97
Free cash flow
$500.54M
Book value per share
$58.93
Diluted shares
53M

Trading

Next earnings
Feb 17, 2027 (estimated, before the open)
Previous close
$290.02
Open
$291.73
Day's range
$286.89 – $293.84
Volume
427,225
Average volume (20 days)
645,352
Index membership
S&P MidCap 400, Russell 1000, Russell 3000
Beta (5 years)
0.74
52-week range
$201.34 – $335.94
RSI (14 days)
40.2
Volatility (1 year)
25.2%
Relative volume
0.89×
WACC
8.0%

On 1 of our idea list: Breakout quarter

Index membership is inferred from the holdings of funds that track each index (IJH, SPMD, IWB, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.

Market cap history

Month-end market cap since 2009, using shares outstanding reported at the time

Total return vs. the S&P 500

Price change plus reinvested dividends, to the close on Nov 12, 2026. The S&P 500 is measured by the SPY fund.

PeriodCLHS&P 500DifferenceCLH per yearS&P 500 per year
1 month-7.9%-2.7%−5.2 pts
3 months-7.2%-1.7%−5.5 pts
Year to date+25.3%+11.9%+13.4 pts
1 year+41.3%+12.0%+29.4 pts
3 years+82.2%+78.2%+4.0 pts+22.1%+21.2%
5 years+176.9%+73.2%+103.7 pts+22.6%+11.6%
10 years+517.6%+309.6%+207.9 pts+20.0%+15.1%

Fifteen years at a glance

Fiscal years 2011 to 2025 and trailing twelve months, USD

Revenue

$6.56B+10.1% YoY

Gross profit

$2.17B+17.2% YoY

Operating income

$864.39M+32.6% YoY

Net income

$528.36M+36.0% YoY

EPS, diluted

$9.97+38.3% YoY

Free cash flow

$500.54M+11.2% YoY
Reported periodTrailing twelve months

Press releases

Releases Clean Harbors filed with the SEC as exhibits to Form 8-K or 6-K

All press releases and earnings

About Clean Harbors

Hazardous Waste Management

Clean Harbors, Inc. supplies environmental and industrial services across North America, operating through its Environmental Services and Safety-Kleen Sustainability Solutions segments. The company collects, transports, treats, recycles, and disposes of hazardous and non-hazardous waste, while also offering emergency spill response, industrial cleaning, maintenance, PFAS remediation, and specialized parts-washer services. In addition, it collects used motor oil and fluids to re-refine into base oils, recycled lubricants, and vacuum gas oil. The firm serves commercial, public, and industrial clients spanning manufacturing, automotive, chemical, refining, utility, and retail sectors.

Company profile, executives and history

Clean Harbors stock: common questions

What is Clean Harbors's stock price?

CLH closed at $293.84 on Nov 12, 2026, up 1.32% on the day. Over the past 52 weeks it traded between $201.34 and $335.94.

What is Clean Harbors's market cap?

Clean Harbors was worth $15.49B at the close on Nov 12, 2026: the share price times the diluted shares outstanding.

What is CLH's P/E ratio?

CLH trades at 29.5 times earnings, based on diluted earnings per share of $9.97 over the twelve months to Sep 30, 2026.

How much revenue does Clean Harbors make?

Clean Harbors reported revenue of $6.56B for the twelve months to Sep 30, 2026, up 10.1% from a year earlier.

Does Clean Harbors pay a dividend?

No. Clean Harbors has not paid a cash dividend over the last twelve months.

When does Clean Harbors report earnings next?

Clean Harbors is expected to report Q4 FY2026 results on Feb 17, 2027, before the open. The date is estimated from its past reporting pattern until the company confirms it.

How has CLH stock performed over the past year?

Including dividends, CLH returned +41.3% over the past year, against +12.0% for the S&P 500.

How many CLH shares are sold short?

1M shares were sold short at the latest FINRA report, 2.78% of the float, or 2.5 days of average trading volume.

Who are Clean Harbors's competitors?

Companies most similar to Clean Harbors by business, industry and size include GFL, WCN, RSG, WM, NVRI.

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