NRGV vs GRRR vs FLNC vs AIOT vs STEM

For growth investors, Energy Vault Holdings, Inc.

(NRGV) is the stronger pick with 340. 9% revenue growth year-over-year, versus -16. 1% for Fluence Energy, Inc. (FLNC). Analysts rate Energy Vault Holdings, Inc. (NRGV) a "Buy" — based on 7 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, PowerFleet, Inc.

(AIOT) delivered a total return of -28. 7%, compared to -97. 8% for Stem, Inc. (STEM). Over 10 years, the gap is even starker: AIOT returned -28. 7% versus STEM's -95. 5%. 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), Gorilla Technology Group Inc.

(GRRR) is the lower-risk stock at 2. 36β versus Stem, Inc. 's 3. 66β — meaning STEM is approximately 55% more volatile than GRRR relative to the S&P 500. On balance sheet safety, Gorilla Technology Group Inc. (GRRR) carries a lower debt/equity ratio of 30% 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 -16. 1% for Fluence Energy, Inc. (FLNC). On earnings-per-share growth, the picture is similar: Stem, Inc. grew EPS 91. 3% year-over-year, compared to -473. 8% for Gorilla Technology Group Inc.. Over a 3-year CAGR, AIOT leads at 42. 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.

Stem, Inc.

(STEM) is the more profitable company, earning 88. 2% net margin versus -86. 8% for Gorilla Technology Group Inc. — meaning it keeps 88. 2% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: FLNC leads at -2. 0% versus -89. 6% for GRRR. At the gross margin level — before operating expenses — AIOT leads at 53. 7%, 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 STEM: 137.

2% to $20. 67.

In this comparison, AIOT (22.

2% yield) pays a dividend. NRGV, GRRR, FLNC, STEM do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, PowerFleet, Inc.

(AIOT) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (22. 2% yield). Stem, Inc. (STEM) carries a higher beta of 3. 66 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (AIOT: -28. 7%, STEM: -95. 5%), 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 (NRGV (Utilities) and GRRR (Technology) and FLNC (Utilities) and AIOT (Technology) and STEM (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: NRGV is a small-cap high-growth stock; GRRR is a small-cap high-growth stock; FLNC is a small-cap quality compounder stock; AIOT is a small-cap income-oriented stock; STEM is a small-cap quality compounder stock. AIOT pays a dividend while NRGV, GRRR, FLNC, STEM 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.