RNW vs SPWR

For growth investors, ReNew Energy Global Plc (RNW) is the stronger pick with 19.

4% revenue growth year-over-year, versus 2. 9% for SunPower Inc. (SPWR). ReNew Energy Global Plc (RNW) offers the better valuation at 46. 9x trailing P/E (0. 4x forward), making it the more compelling value choice. Analysts rate ReNew Energy Global Plc (RNW) a "Buy" — based on 6 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 forward P/E, ReNew Energy Global Plc is actually cheaper at 0.

4x.

Over the past 5 years, ReNew Energy Global Plc (RNW) delivered a total return of -45.

7%, compared to -81. 3% for SunPower Inc. (SPWR). Over 10 years, the gap is even starker: RNW returned -48. 5% versus SPWR's -80. 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), ReNew Energy Global Plc (RNW) is the lower-risk stock at 0.

69β versus SunPower Inc. 's 2. 15β — meaning SPWR is approximately 211% more volatile than RNW relative to the S&P 500.

By revenue growth (latest reported year), ReNew Energy Global Plc (RNW) is pulling ahead at 19.

4% versus 2. 9% for SunPower Inc. (SPWR). On earnings-per-share growth, the picture is similar: ReNew Energy Global Plc grew EPS 10. 1% year-over-year, compared to 0. 0% for SunPower Inc.. Over a 3-year CAGR, SPWR leads at 65. 3% 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.

ReNew Energy Global Plc (RNW) is the more profitable company, earning 3.

9% net margin versus -10. 5% for SunPower Inc. — meaning it keeps 3. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: RNW leads at 53. 5% versus -2. 0% for SPWR. At the gross margin level — before operating expenses — RNW leads at 91. 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.

On forward earnings alone, ReNew Energy Global Plc (RNW) trades at 0.

4x forward P/E versus 5. 5x for SunPower Inc. — 5. 0x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for SPWR: 1450. 0% to $15. 81.

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, ReNew Energy Global Plc (RNW) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

69)). SunPower Inc. (SPWR) carries a higher beta of 2. 15 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (RNW: -48. 5%, SPWR: -80. 0%), 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 (RNW (Utilities) and SPWR (Energy)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: RNW is a small-cap high-growth stock; SPWR 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.