VIVK vs PESI vs CLNE vs GEVO vs AMTX

For growth investors, Gevo, Inc.

(GEVO) is the stronger pick with 849. 3% revenue growth year-over-year, versus -22. 3% for Aemetis, Inc. (AMTX). 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, Perma-Fix Environmental Services, Inc.

(PESI) delivered a total return of +45. 6%, compared to -100. 0% for Vivakor, Inc. (VIVK). Over 10 years, the gap is even starker: PESI returned +178. 6% versus VIVK's -100. 0%. 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), Vivakor, Inc.

(VIVK) is the lower-risk stock at 0. 74β versus Perma-Fix Environmental Services, Inc. 's 1. 85β — meaning PESI is approximately 149% more volatile than VIVK 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 95% for Vivakor, 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. 3% for Aemetis, Inc. (AMTX). 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.

Gevo, Inc.

(GEVO) is the more profitable company, earning -21. 1% net margin versus -105. 6% for Vivakor, Inc. — meaning it keeps -21. 1% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: GEVO leads at -11. 7% versus -22. 3% for VIVK. At the gross margin level — before operating expenses — VIVK leads at 36. 1%, 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.

In this comparison, VIVK (100.

0% yield) pays a dividend. PESI, CLNE, GEVO, AMTX do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Vivakor, Inc.

(VIVK) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 74), 100. 0% yield). 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 (VIVK: -100. 0%, 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 (VIVK (Energy) and PESI (Industrials) and CLNE (Energy) and GEVO (Basic Materials) and AMTX (Energy)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: VIVK is a small-cap high-growth stock; PESI is a small-cap quality compounder stock; CLNE is a small-cap quality compounder stock; GEVO is a small-cap high-growth stock; AMTX is a small-cap quality compounder stock. VIVK pays a dividend while PESI, CLNE, GEVO, AMTX do 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.