DUOT vs PESI vs CWST vs RAIL

For growth investors, Duos Technologies Group, Inc.

(DUOT) is the stronger pick with 271. 2% revenue growth year-over-year, versus -10. 4% for FreightCar America, Inc. (RAIL). FreightCar America, Inc. (RAIL) offers the better valuation at 7. 5x trailing P/E (17. 5x forward), making it the more compelling value choice. Analysts rate Duos Technologies Group, Inc. (DUOT) a "Buy" — based on 3 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, FreightCar America, Inc.

(RAIL) is the cheapest at 7. 5x versus Casella Waste Systems, Inc. at 744. 8x. On forward P/E, FreightCar America, Inc. is actually cheaper at 17. 5x.

Over the past 5 years, Perma-Fix Environmental Services, Inc.

(PESI) delivered a total return of +59. 6%, compared to +10. 1% for Duos Technologies Group, Inc. (DUOT). Over 10 years, the gap is even starker: CWST returned +1108% versus DUOT's -58. 6%. 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), Casella Waste Systems, Inc.

(CWST) is the lower-risk stock at 0. 27β versus Duos Technologies Group, Inc. 's 2. 73β — meaning DUOT is approximately 920% more volatile than CWST relative to the S&P 500. On balance sheet safety, Perma-Fix Environmental Services, Inc. (PESI) carries a lower debt/equity ratio of 9% versus 79% for Casella Waste Systems, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Duos Technologies Group, Inc.

(DUOT) is pulling ahead at 271. 2% versus -10. 4% for FreightCar America, Inc. (RAIL). On earnings-per-share growth, the picture is similar: FreightCar America, Inc. grew EPS 134. 9% year-over-year, compared to -47. 8% for Casella Waste Systems, Inc.. Over a 3-year CAGR, DUOT leads at 21. 6% 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.

FreightCar America, Inc.

(RAIL) is the more profitable company, earning 7. 6% net margin versus -36. 4% for Duos Technologies Group, Inc. — meaning it keeps 7. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: RAIL leads at 6. 8% versus -36. 1% for DUOT. At the gross margin level — before operating expenses — DUOT leads at 29. 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.

On forward earnings alone, FreightCar America, Inc.

(RAIL) trades at 17. 5x forward P/E versus 292. 0x for Duos Technologies Group, Inc. — 274. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for PESI: 63. 7% to $18. 00.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Casella Waste Systems, Inc.

(CWST) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 27), +1108% 10Y return). Duos Technologies Group, Inc. (DUOT) carries a higher beta of 2. 73 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CWST: +1108%, DUOT: -58. 6%), 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 (DUOT (Technology) and PESI (Industrials) and CWST (Industrials) and RAIL (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: DUOT is a small-cap high-growth stock; PESI is a small-cap quality compounder stock; CWST is a small-cap high-growth stock; RAIL is a small-cap deep-value stock. 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.