The short version

From the latest prices and each company's SEC filings. Who's ahead on each measure, not which to buy.

  • Waste Management is the larger company, worth $86.1B, about 5.1 times Clean Harbors.
  • Waste Management grew revenue faster over the last year (+4.0% vs +1.9%).
  • Waste Management keeps more of each dollar of revenue as operating profit (17.6% vs 11.2%).
  • On earnings, Waste Management is the cheaper stock (31.0x vs 43.1x).
  • Clean Harbors's price assumes faster free cash flow growth: about 13% a year, against 11% for Waste Management (reverse DCF).

Side by side

The stronger figure is shaded where higher (or, for valuation multiples, lower) reads as better. How the implied growth works.

MeasureCLHWM
Market cap$16.8B$86.1B
Share price$316.93$208.83
Revenue (last fiscal year)$6.0B$25.2B
Free cash flow (last fiscal year)$442M$2.8B
Revenue growth, last year+1.9%+4.0%
Revenue growth per year, last 5 fiscal years+12.2%+8.9%
Operating margin11.2%17.6%
Net margin6.5%11.1%
Return on equity14.2%28.8%
P/E (trailing)43.1x31.0x
Price / free cash flow38.0x30.6x
EV / EBITDA18.7x16.0x
FCF growth the price implies13.4%10.6%
Dividend yield—1.6%
Debt / equity1.72x3.68x
Fundamental gradeDC
Superinvestors holding it47
Insider purchases, last 12 months44

Results from SEC filings

Revenue and free cash flow by fiscal year, from each company's 10-K filings.

Clean Harbors

YearRevenueFree cash flowOp. margin
2021$3.8B$304M9.1%
2022$5.2B$281M12.3%
2023$5.4B$312M11.3%
2024$5.9B$346M11.4%
2025$6.0B$442M11.2%

Waste Management

YearRevenueFree cash flowOp. margin
2021$17.9B$2.4B16.5%
2022$19.7B$1.9B17.1%
2023$20.4B$1.8B17.5%
2024$22.1B$2.2B18.4%
2025$25.2B$2.8B17.1%

Where the revenue comes from

Clean Harbors · by segments, 2025

Environmental Services$5.1B85%
Safety-Kleen Sustainability Solutions$884M15%

Waste Management · by segments, 2025

East Tier$9.0B36%
West Tier$8.7B35%
Other Ancillary$2.9B12%
Healthcare Solutions$2.5B10%
Recycling Processing and Sales$1.5B6%
Renewable Energy$478M2%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open CLH in Investingly

Questions

Which is bigger, Clean Harbors or Waste Management?

Waste Management (WM), at $86.1B against $16.8B.

Is CLH or WM cheaper?

By trailing P/E, Waste Management (31.0x) is cheaper than Clean Harbors (43.1x). A lower multiple can also mean the market expects less growth.

Which grows faster, CLH or WM?

Waste Management: revenue grew +4.0% over the last year, against +1.9%.

Prices and ratios as of the last daily update; statements from SEC filings. Information only, not investment advice.