Comprehensive Stock Comparison
Compare Fluence Energy, Inc. (FLNC) vs Constellation Energy Corporation (CEG) Stock
Analyze side-by-side fundamentals, valuation, growth, and profitability to decide which stock is the better buy.
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Quick Verdict
| Category | Winner | Why |
|---|---|---|
| Growth | CEG | 8.3% revenue growth vs FLNC's -16.1% |
| Quality / Margins | CEG | 9.1% net margin vs FLNC's -2.0% |
| Stability / Safety | CEG | Beta 1.70 vs FLNC's 2.25, lower leverage |
| Dividends | CEG | 0.5% yield; 3-year raise streak; FLNC pays no meaningful dividend |
| Momentum (1Y) | FLNC | +171.7% vs CEG's +32.3% |
| Efficiency (ROA) | CEG | 4.1% ROA vs FLNC's -2.3%, ROIC 11.9% vs -12.0% |
Who Each Stock Is For
Income & stability
Growth exposure
Long-term compounding (10Y)
Sleep-well-at-night portfolio
Defensive / Recession hedge
Business Model
What each company does and how it makes money
Fluence Energy is a global provider of energy storage systems and AI-powered digital applications for renewable energy integration. It generates revenue primarily through selling battery storage hardware (Gridstack, Sunstack, Edgestack) and providing related services like engineering, maintenance, and energy storage-as-a-service contracts. The company benefits from its joint venture ownership by Siemens and AES Corporation — which provides deep industry expertise, global scale, and established customer relationships in the utility sector.
Constellation Energy is a major clean energy company that generates and sells electricity—primarily from nuclear, wind, and solar assets—across multiple U.S. power regions. It makes money by selling electricity and natural gas to utilities, municipalities, and commercial/industrial customers, with its nuclear fleet providing stable baseload power. The company's key advantage is its massive, low-carbon generation portfolio—including the nation's largest nuclear fleet—which gives it scale and operational efficiency in the transition to clean energy.
Revenue Breakdown by Segment
How each company's revenue is distributed across its business units
Financial Metrics Comparison
Side-by-side fundamentals across 2 stocks. BestLagging
Financial Scorecard
CEG leads in 4 of 6 categories (Financial Metrics, Profitability & Efficiency). FLNC leads in 1 (Valuation Metrics).
Financial Metrics (TTM)
CEG is the larger business by revenue, generating $25.5B annually — 10.0x FLNC's $2.6B. CEG is the more profitable business, keeping 9.1% of every revenue dollar as net income compared to FLNC's -2.0%. On growth, FLNC holds the edge at +154.4% YoY revenue growth, suggesting stronger near-term business momentum.
| Metric | FLNCFluence Energy, I… | CEGConstellation Ene… |
|---|---|---|
| RevenueTrailing 12 months | $2.6B | $25.5B |
| EBITDAEarnings before interest/tax | -$12M | $4.7B |
| Net IncomeAfter-tax profit | -$52M | $2.3B |
| Free Cash FlowCash after capex | -$195M | $1.3B |
| Gross MarginGross profit ÷ Revenue | +11.7% | +75.8% |
| Operating MarginEBIT ÷ Revenue | -1.6% | +12.1% |
| Net MarginNet income ÷ Revenue | -2.0% | +9.1% |
| FCF MarginFCF ÷ Revenue | -7.6% | +5.0% |
| Rev. Growth (YoY)Latest quarter vs prior year | +154.4% | +1.4% |
| EPS Growth (YoY)Latest quarter vs prior year | -6.3% | -49.1% |
Valuation Metrics
| Metric | FLNCFluence Energy, I… | CEGConstellation Ene… |
|---|---|---|
| Market CapShares × price | $800M | $103.0B |
| Enterprise ValueMkt cap + debt − cash | $500M | $108.3B |
| Trailing P/EPrice ÷ TTM EPS | -42.00x | 44.58x |
| Forward P/EPrice ÷ next-FY EPS est. | — | 28.14x |
| PEG RatioP/E ÷ EPS growth rate | — | 1.37x |
| EV / EBITDAEnterprise value multiple | — | 26.60x |
| Price / SalesMarket cap ÷ Revenue | 0.35x | 4.04x |
| Price / BookPrice ÷ Book value/share | 3.69x | 6.97x |
| Price / FCFMarket cap ÷ FCF | — | 80.00x |
Profitability & Efficiency
CEG delivers a 15.6% return on equity — every $100 of shareholder capital generates $16 in annual profit, vs $-11 for FLNC. CEG carries lower financial leverage with a 0.61x debt-to-equity ratio, signaling a more conservative balance sheet compared to FLNC's 0.71x. On the Piotroski fundamental quality scale (0–9), CEG scores 7/9 vs FLNC's 3/9, reflecting strong financial health.
| Metric | FLNCFluence Energy, I… | CEGConstellation Ene… |
|---|---|---|
| ROE (TTM)Return on equity | -10.6% | +15.6% |
| ROA (TTM)Return on assets | -2.3% | +4.1% |
| ROICReturn on invested capital | -12.0% | +11.9% |
| ROCEReturn on capital employed | -4.3% | +6.5% |
| Piotroski ScoreFundamental quality 0–9 | 3 | 7 |
| Debt / EquityFinancial leverage | 0.71x | 0.61x |
| Net DebtTotal debt minus cash | -$300M | $5.2B |
| Cash & Equiv.Liquid assets | $691M | $3.7B |
| Total DebtShort + long-term debt | $391M | $9.0B |
| Interest CoverageEBIT ÷ Interest expense | -8.49x | 6.04x |
Total Returns (with DRIP)
A $10,000 investment in CEG five years ago would be worth $79,651 today (with dividends reinvested), compared to $4,440 for FLNC. Over the past 12 months, FLNC leads with a +171.7% total return vs CEG's +32.3%. The 3-year compound annual growth rate (CAGR) favors CEG at 64.6% vs FLNC's -5.9% — a key indicator of consistent wealth creation.
| Metric | FLNCFluence Energy, I… | CEGConstellation Ene… |
|---|---|---|
| YTD ReturnYear-to-date | -32.5% | -9.9% |
| 1-Year ReturnPast 12 months | +171.7% | +32.3% |
| 3-Year ReturnCumulative with dividends | -16.8% | +345.6% |
| 5-Year ReturnCumulative with dividends | -55.6% | +696.5% |
| 10-Year ReturnCumulative with dividends | -55.6% | +696.5% |
| CAGR (3Y)Annualised 3-year return | -5.9% | +64.6% |
Risk & Volatility
CEG is the less volatile stock with a 1.70 beta — it tends to amplify market swings less than FLNC's 2.25 beta. A beta below 1.0 means the stock typically moves less than the S&P 500. CEG currently trades 79.9% from its 52-week high vs FLNC's 46.4% drawdown — a narrower gap to the peak suggests stronger recent price momentum.
| Metric | FLNCFluence Energy, I… | CEGConstellation Ene… |
|---|---|---|
| Beta (5Y)Sensitivity to S&P 500 | 2.25x | 1.70x |
| 52-Week HighHighest price in past year | $33.51 | $412.70 |
| 52-Week LowLowest price in past year | $3.46 | $161.35 |
| % of 52W HighCurrent price vs 52-week peak | +46.4% | +79.9% |
| RSI (14)Momentum oscillator 0–100 | 32.9 | 63.7 |
| Avg Volume (50D)Average daily shares traded | 4.9M | 3.1M |
Analyst Outlook
Wall Street rates FLNC as "Hold" and CEG as "Buy". Consensus price targets imply 35.6% upside for FLNC (target: $21) vs 26.1% for CEG (target: $416). CEG is the only dividend payer here at 0.47% yield — a key consideration for income-focused portfolios.
| Metric | FLNCFluence Energy, I… | CEGConstellation Ene… |
|---|---|---|
| Analyst RatingConsensus buy/hold/sell | Hold | Buy |
| Price TargetConsensus 12-month target | $21.08 | $415.83 |
| # AnalystsCovering analysts | 27 | 18 |
| Dividend YieldAnnual dividend ÷ price | — | +0.5% |
| Dividend StreakConsecutive years of raises | — | 3 |
| Dividend / ShareAnnual DPS | — | $1.55 |
| Buyback YieldShare repurchases ÷ mkt cap | 0.0% | +0.4% |
Historical Charts
Charts are rendered on first load. Hover for details.
Chart 1Total Return — 5 Years (Rebased to 100)
| Stock | Feb 22 | Feb 26 | Change |
|---|---|---|---|
| Fluence Energy, Inc. (FLNC) | 100 | 161.22 | +61.2% |
| Constellation Energ… (CEG) | 118.52 | 644.95 | +444.2% |
Constellation Energ… (CEG) returned +697% over 5 years vs Fluence Energy, Inc. (FLNC)'s -56%. A $10,000 investment in CEG 5 years ago would be worth $79,651 today (including dividends reinvested).
Chart 2Revenue Growth — 10 Years
| Stock | 2016 | 2025 | Change |
|---|---|---|---|
| Fluence Energy, Inc. (FLNC) | $92M | $2.3B | +2355.6% |
| Constellation Energ… (CEG) | $17.8B | $25.5B | +43.8% |
Constellation Energy Corporation's revenue grew from $17.8B (2016) to $25.5B (2025) — a 4.1% CAGR.
Chart 3Net Margin Trend — 10 Years
| Stock | 2016 | 2025 | Change |
|---|---|---|---|
| Fluence Energy, Inc. (FLNC) | -51.0% | -2.1% | +95.8% |
| Constellation Energ… (CEG) | 2.7% | 9.1% | +233.9% |
Constellation Energy Corporation's net margin went from 3% (2016) to 9% (2025).
Chart 4P/E Ratio History — 3 Years
| Stock | 2023 | 2025 | Change |
|---|---|---|---|
| Constellation Energ… (CEG) | 23.3 | 47.7 | +104.7% |
Constellation Energy Corporation has traded in a 19x–48x P/E range over 3 years; current trailing P/E is ~45x.
Chart 5EPS Growth — 10 Years
| Stock | 2016 | 2025 | Change |
|---|---|---|---|
| Fluence Energy, Inc. (FLNC) | -0.95 | -0.37 | +61.1% |
| Constellation Energ… (CEG) | 1.48 | 7.4 | +400.0% |
Constellation Energy Corporation's EPS grew from $1.48 (2016) to $7.40 (2025) — a 20% CAGR.
Chart 6Free Cash Flow — 5 Years
Fluence Energy, Inc. generated $-175M FCF in 2025 (+39% vs 2021). Constellation Energy Corporation generated $1B FCF in 2025 (-34% vs 2021).
FLNC vs CEG: Frequently Asked Questions
8 questions · data-driven answers · updated daily
01Is FLNC or CEG a better buy right now?
Constellation Energy Corporation (CEG) offers the better valuation at 44.6x trailing P/E (28.1x forward), making it the more compelling value choice. Analysts rate Constellation Energy Corporation (CEG) a "Buy" — based on 18 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.
02Which is the better long-term investment — FLNC or CEG?
Over the past 5 years, Constellation Energy Corporation (CEG) delivered a total return of +696.5%, compared to -55.6% for Fluence Energy, Inc. (FLNC). A $10,000 investment in CEG five years ago would be worth approximately $80K today (assuming dividends reinvested). Over 10 years, the gap is even starker: CEG returned +696.5% versus FLNC's -55.6%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.
03Which is safer — FLNC or CEG?
By beta (market sensitivity over 5 years), Constellation Energy Corporation (CEG) is the lower-risk stock at 1.70β versus Fluence Energy, Inc.'s 2.25β — meaning FLNC is approximately 33% more volatile than CEG relative to the S&P 500. On balance sheet safety, Constellation Energy Corporation (CEG) carries a lower debt/equity ratio of 61% versus 71% for Fluence Energy, Inc. — giving it more financial flexibility in a downturn.
04Which has better profit margins — FLNC or CEG?
Constellation Energy Corporation (CEG) is the more profitable company, earning 9.1% net margin versus -2.1% for Fluence Energy, Inc. — meaning it keeps 9.1% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: CEG leads at 12.1% versus -1.5% for FLNC. At the gross margin level — before operating expenses — CEG leads at 75.8%, 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.
05Is FLNC or CEG more undervalued right now?
Analyst consensus price targets imply the most upside for FLNC: 35.6% to $21.08.
06Which pays a better dividend — FLNC or CEG?
In this comparison, CEG (0.5% yield) pays a dividend. FLNC does not pay a meaningful dividend and should not be held primarily for income.
07Is FLNC or CEG better for a retirement portfolio?
For long-horizon retirement investors, Constellation Energy Corporation (CEG) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+696.5% 10Y return). Fluence Energy, Inc. (FLNC) carries a higher beta of 2.25 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CEG: +696.5%, FLNC: -55.6%), 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.
08What are the main differences between FLNC and CEG?
Both stocks operate in the Utilities sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both. 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.
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