CLNE vs AMTX vs GEVO vs REX

For growth investors, Gevo, Inc.

(GEVO) is the stronger pick with 849. 3% revenue growth year-over-year, versus -22. 9% for REX American Resources Corporation (REX). REX American Resources Corporation (REX) offers the better valuation at 29. 5x trailing P/E (62. 8x forward), making it the more compelling value choice. Analysts rate Clean Energy Fuels Corp. (CLNE) a "Buy" — based on 22 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.

Over the past 5 years, REX American Resources Corporation (REX) delivered a total return of +250.

0%, compared to -76. 1% for Aemetis, Inc. (AMTX). Over 10 years, the gap is even starker: REX returned +464. 7% versus GEVO's -98. 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), REX American Resources Corporation (REX) is the lower-risk stock at 0.

36β versus Gevo, Inc. 's 1. 64β — meaning GEVO is approximately 352% more volatile than REX relative to the S&P 500. On balance sheet safety, REX American Resources Corporation (REX) carries a lower debt/equity ratio of 3% versus 36% for Gevo, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Gevo, Inc.

(GEVO) is pulling ahead at 849. 3% versus -22. 9% for REX American Resources Corporation (REX). On earnings-per-share growth, the picture is similar: Gevo, Inc. grew EPS 58. 8% year-over-year, compared to -173. 0% for Clean Energy Fuels Corp.. Over a 3-year CAGR, GEVO leads at 415. 1% 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.

REX American Resources Corporation (REX) is the more profitable company, earning 9.

1% net margin versus -52. 3% for Clean Energy Fuels Corp. — meaning it keeps 9. 1% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: REX leads at 10. 0% versus -22. 1% for CLNE. At the gross margin level — before operating expenses — GEVO leads at 30. 2%, 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.

Analyst consensus price targets imply the most upside for GEVO: 72.

4% to $3. 50.

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, REX American Resources Corporation (REX) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

36), +464. 7% 10Y return). Gevo, Inc. (GEVO) carries a higher beta of 1. 64 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (REX: +464. 7%, GEVO: -98. 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 (CLNE (Energy) and AMTX (Energy) and GEVO (Basic Materials) and REX (Basic Materials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: CLNE is a small-cap quality compounder stock; AMTX is a small-cap quality compounder stock; GEVO is a small-cap high-growth stock; REX is a small-cap quality compounder 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.