OPAL vs WM vs RSG vs CWST

For growth investors, Casella Waste Systems, Inc.

(CWST) is the stronger pick with 18. 0% revenue growth year-over-year, versus 3. 5% for Republic Services, Inc. (RSG). OPAL Fuels Inc. (OPAL) offers the better valuation at 15. 6x trailing P/E, making it the more compelling value choice. Analysts rate Waste Management, Inc. (WM) a "Buy" — based on 35 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, OPAL Fuels Inc.

(OPAL) is the cheapest at 15. 6x versus Casella Waste Systems, Inc. at 712. 1x. On forward P/E, Waste Management, Inc. is actually cheaper at 27. 1x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Republic Services, Inc. wins at 1. 56x versus Waste Management, Inc. 's 1. 97x — a reasonable growth-adjusted valuation.

Over the past 5 years, Republic Services, Inc.

(RSG) delivered a total return of +91. 4%, compared to -76. 1% for OPAL Fuels Inc. (OPAL). Over 10 years, the gap is even starker: CWST returned +1059% versus OPAL's -76. 1%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Waste Management, Inc.

(WM) is the lower-risk stock at -0. 17β versus OPAL Fuels Inc. 's 1. 58β — meaning OPAL is approximately -1007% more volatile than WM relative to the S&P 500. On balance sheet safety, Republic Services, Inc. (RSG) carries a lower debt/equity ratio of 5% versus 2% for Waste Management, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Casella Waste Systems, Inc.

(CWST) is pulling ahead at 18. 0% versus 3. 5% for Republic Services, Inc. (RSG). On earnings-per-share growth, the picture is similar: OPAL Fuels Inc. grew EPS 638. 9% year-over-year, compared to -47. 8% for Casella Waste Systems, Inc.. Over a 3-year CAGR, CWST leads at 19. 2% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Republic Services, Inc.

(RSG) is the more profitable company, earning 12. 9% net margin versus 0. 4% for Casella Waste Systems, Inc. — meaning it keeps 12. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: RSG leads at 20. 0% versus 1. 4% for OPAL. At the gross margin level — before operating expenses — RSG leads at 30. 3%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Republic Services, Inc. (RSG) is the more undervalued stock at a PEG of 1. 56x versus Waste Management, Inc. 's 1. 97x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Waste Management, Inc. (WM) trades at 27. 1x forward P/E versus 63. 9x for Casella Waste Systems, Inc. — 36. 9x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for CWST: 39. 3% to $119. 00.

In this comparison, OPAL (15.

3% yield), WM (1. 5% yield), RSG (1. 2% yield) pay a dividend. CWST does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Republic Services, Inc.

(RSG) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β -0. 15), 1. 2% yield, +353. 8% 10Y return). OPAL Fuels Inc. (OPAL) carries a higher beta of 1. 58 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (RSG: +353. 8%, OPAL: -76. 1%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

These companies operate in different sectors (OPAL (Utilities) and WM (Industrials) and RSG (Industrials) and CWST (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: OPAL is a small-cap high-growth stock; WM is a mid-cap quality compounder stock; RSG is a mid-cap quality compounder stock; CWST is a small-cap high-growth stock. OPAL, WM, RSG pay a dividend while CWST does not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.