Which has the lower trailing P/E, AMTM or CWST?

AMTM has the lower trailing P/E: AMTM trades at 24.83 and CWST at 997.85. P/E is one valuation measure and does not by itself establish which business is cheaper.

Is AMTM or CWST more profitable?

AMTM runs the higher net margin — AMTM at 1.44% versus CWST at 0.29%.

Amentum Holdings, Inc. (AMTM) vs Casella Waste Systems, Inc. (CWST)

A side-by-side comparison of Amentum Holdings, Inc. and Casella Waste Systems, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of August 27, 2026. Differences are shown without an overall score or investment verdict.

AMTM

Amentum Holdings, Inc.

$4.99B

$20.43IndustrialsDelayed quote: Aug 27, 2026, 4:00 PM EDT

CWST

Casella Waste Systems, Inc.

$5.82B

$93.00IndustrialsDelayed quote: Aug 27, 2026, 4:00 PM EDT

Total return — AMTM vs CWST

growth of $100 · dividends reinvested · last 2y

AMTM -30.2% (-16.4%/yr)CWST -6.7% (-3.4%/yr)CWST compounded faster over this window

AMTM CWST

AMTM vs CWST: by the numbers

•CWST is the larger company ($5.82B vs $4.99B market cap).
•AMTM trades at the lower trailing earnings multiple (24.83 vs 997.85 P/E), one valuation lens rather than an overall verdict.
•AMTM converts more revenue to profit (1.44% vs 0.29% net margin).

Metrics side by side

Valuation

Metric	AMTM	CWST
P/E ratio	24.83	997.85
Forward P/E	8.40	N/A
P/S ratio	0.36	3.03
P/B ratio	1.08	3.75
EV / EBITDA	8.04	17.18
FCF yield	9.61%	1.78%

Profitability

Metric	AMTM	CWST
Gross margin	8.73%	17.06%
Operating margin	4.10%	4.45%
Net margin	1.44%	0.29%
ROE	4.35%	0.36%
ROIC	4.71%	1.72%

Growth (annualized)

Metric	AMTM	CWST
Revenue CAGR (5Y)	N/A	19.33%
EPS CAGR (5Y)	N/A	-42.27%
FCF CAGR (5Y)	N/A	19.24%
Total return CAGR (5Y)	N/A	4.87%

Frequently asked

Which has the lower trailing P/E, AMTM or CWST?: AMTM has the lower trailing P/E: AMTM trades at 24.83 and CWST at 997.85. P/E is one valuation measure and does not by itself establish which business is cheaper.
Is AMTM or CWST more profitable?: AMTM runs the higher net margin — AMTM at 1.44% versus CWST at 0.29%.

Go deeper

Full AMTM analysis Full CWST analysis Interactive comparison tool

Dig into the metrics

Amentum P/E ratio Casella Waste Systems P/E ratio Amentum ROE Casella Waste Systems ROE Amentum operating margin Casella Waste Systems operating margin Amentum revenue growth Casella Waste Systems revenue growth Amentum free cash flow Casella Waste Systems free cash flow

Amentum & Casella Waste Systems appear in these rankings

Fastest Revenue Growth Stocks Highest FCF Yield Stocks Highest 10-Year Total Return Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified August 27, 2026.