NOEMU vs HYAC vs NRGV vs ACIC

For growth investors, Energy Vault Holdings, Inc.

(NRGV) is the stronger pick with 340. 9% revenue growth year-over-year, versus 13. 1% for American Coastal Insurance Corporation (ACIC). American Coastal Insurance Corporation (ACIC) offers the better valuation at 4. 9x trailing P/E (7. 5x forward), making it the more compelling value choice. Analysts rate Haymaker Acquisition Corp. III (HYAC) a "Buy" — based on 2 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, American Coastal Insurance Corporation (ACIC) is the cheapest at 4.

9x versus CO2 Energy Transition Corp. Unit at 9999. 0x.

Over the past 5 years, American Coastal Insurance Corporation (ACIC) delivered a total return of +99.

0%, compared to -53. 6% for Energy Vault Holdings, Inc. (NRGV). Over 10 years, the gap is even starker: NOEMU returned +18. 6% versus NRGV's -53. 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), CO2 Energy Transition Corp.

Unit (NOEMU) is the lower-risk stock at -0. 21β versus Energy Vault Holdings, Inc. 's 2. 97β — meaning NRGV is approximately -1499% more volatile than NOEMU relative to the S&P 500. On balance sheet safety, CO2 Energy Transition Corp. Unit (NOEMU) carries a lower debt/equity ratio of 0% versus 107% for Energy Vault Holdings, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Energy Vault Holdings, Inc.

(NRGV) is pulling ahead at 340. 9% versus 13. 1% for American Coastal Insurance Corporation (ACIC). On earnings-per-share growth, the picture is similar: Haymaker Acquisition Corp. III grew EPS 137. 5% year-over-year, compared to 28. 6% for Energy Vault Holdings, Inc.. Over a 3-year CAGR, ACIC leads at 15. 0% 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.

American Coastal Insurance Corporation (ACIC) is the more profitable company, earning 31.

8% net margin versus -50. 9% for Energy Vault Holdings, Inc. — meaning it keeps 31. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ACIC leads at 42. 6% versus -36. 5% for NRGV. At the gross margin level — before operating expenses — ACIC leads at 86. 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.

Analyst consensus price targets imply the most upside for NRGV: 54.

5% to $7. 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, CO2 Energy Transition Corp.

Unit (NOEMU) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β -0. 21)). Energy Vault Holdings, Inc. (NRGV) carries a higher beta of 2. 97 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (NOEMU: +18. 6%, NRGV: -53. 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 (NOEMU (Financial Services) and HYAC (Financial Services) and NRGV (Utilities) and ACIC (Financial Services)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: NOEMU is a small-cap quality compounder stock; HYAC is a small-cap quality compounder stock; NRGV is a small-cap high-growth stock; ACIC 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.