SMR vs CEG Stock Comparison: AI Score, Valuation, Performance and Upside
NuScale Power is a pre-commercial developer of new small modular reactor technology, while Constellation Energy is an established operator generating substantial revenue and cash flow from its existing large-scale nuclear fleet.
Investors weighing NuScale against Constellation are choosing between a speculative bet on next-generation reactor technology reaching commercialization and an established, cash-generating nuclear power operator benefiting from rising electricity demand.
CEG holds the edge across 4 of 5 key metrics in this comparison. CEG leads on both 1-year return (-13.15%) and forward P/E quality (21.17x vs -14.42x for SMR), a relatively favorable combination of momentum and valuation. CEG leads on both revenue growth (23.00%) and operating margin (8.66%), suggesting a stronger fundamental setup on both dimensions. Analyst consensus implies meaningfully more upside for SMR (+34.40%) than for CEG (+23.35%).
- Want exposure to next-generation small modular reactor technology
- Value the milestone of achieved regulatory design certification
- Can tolerate pre-revenue volatility and long deployment timelines
- Are looking for a higher-risk, higher-potential-reward nuclear bet
- Prefer an established, cash-generating nuclear power operator
- Want exposure to rising data center and AI-driven electricity demand
- Value a company with an existing, already-operating reactor fleet
- Seek more predictable earnings than a pre-commercial technology developer
| Metric | SMR | CEG |
|---|---|---|
| AI score | 21.6 | 50.5 |
| AI rank | #4704 | #429 |
| Latest close | $9.40 | $272.88 |
| 1M return | +8.29% | -0.73% |
| 6M return | -35.79% | -6.44% |
| 1Y return | -71.93% | -13.15% |
How much would $10,000 be worth today if invested at the start of each period, with all dividends reinvested?
| Period | SMR | CEG |
|---|---|---|
| 1Y ago | $2.81K (-71.9%) started 2025-08-21 | $8.73K (-12.7%) started 2025-08-21 |
| 5Y ago | $9.34K (-6.6%) started 2022-03-01 | $69.2K (+592.0%) started 2022-01-19 |
| 10Y ago | $9.34K (-6.6%) started 2022-03-01 | $69.2K (+592.0%) started 2022-01-19 |
Hypothetical — past performance does not guarantee future results.
| Metric | SMR | CEG |
|---|---|---|
| Market cap | $3.86B | $100.09B |
| Trailing P/E | N/A | 27.61 |
| Forward P/E | -14.42 | 21.17 |
| Price/Sales | 360.87 | 3.87 |
| EV/Revenue | 256.74 | 3.98 |
| Analyst target | $12.63 | $348.45 |
| Target upside | +34.40% | +23.35% |
| Metric | SMR | CEG |
|---|---|---|
| Revenue growth | -99.10% | 23.00% |
| Earnings growth | N/A | -46.80% |
| EPS growth | N/A | -46.80% |
| FCF margin | -1913.88% | -21.19% |
| Operating margin | -85337.33% | 8.66% |
| Profit margin | 0.00% | 11.08% |
| ROIC proxy | -55.18% | 15.06% |
| Return on equity | -55.18% | 15.06% |
| Dividend yield | 0.00% | 0.60% |
| Beta | 2.31 | 1.12 |
| Debt/equity | 0.33 | 76.42 |
| Current ratio | 37.88 | 1.46 |
| Quick ratio | 37.34 | 0.47 |
Lower drawdown and smaller single-period drops generally indicate a smoother ride, though they do not guarantee lower future risk.
| Period | Metric | SMR | CEG |
|---|---|---|---|
| 1Y | Growth | -71.93% | -12.68% |
| CAGR | -71.96% | -12.70% | |
| Sharpe ratio | -0.80 | -0.15 | |
| Max drawdown | 85.79% | 41.45% | |
| Max daily drop | 14.38% | 10.90% | |
| Max wkly drop | 35.02% | 15.28% | |
| 5Y | Growth | -6.56% | +570.38% |
| CAGR | -1.51% | +51.41% | |
| Sharpe ratio | 0.43 | 1.00 | |
| Max drawdown | 87.47% | 50.70% | |
| Max daily drop | 34.85% | 20.85% | |
| Max wkly drop | 59.70% | 19.29% | |
| 10Y | Growth | -6.56% | +570.38% |
| CAGR | -1.51% | +51.41% | |
| Sharpe ratio | 0.43 | 1.00 | |
| Max drawdown | 87.47% | 50.70% | |
| Max daily drop | 34.85% | 20.85% | |
| Max wkly drop | 59.70% | 19.29% |
| Category | SMR | CEG |
|---|---|---|
| Company | NuScale Power Corporation | Constellation Energy Corporation |
| Sector | Utilities / Nuclear Technology | Utilities |
| Industry | N/A | Utilities - Renewable |
| Core business | NuScale Power designs light-water small modular reactors (SMRs) intended to provide scalable, factory-built nuclear power for utilities and industrial customers. | Constellation Energy is the largest operator of nuclear power plants in the United States, generating substantial carbon-free electricity from its existing reactor fleet alongside other generation assets. |
| Investor focus | Watch progress on regulatory design approvals, customer project agreements, and the transition from design and engineering revenue toward reactor deployment. | Watch power purchase agreements tied to data center and AI demand, nuclear plant relicensing and uprate progress, and regulated versus merchant power price trends. |
- First SMR design to receive US Nuclear Regulatory Commission design certification for its original module
- Established engineering relationships with utility and international customers
- Modular, factory-built approach intended to reduce construction risk versus large reactors
- Large, already-operating nuclear fleet generating substantial ongoing cash flow
- Growing demand for carbon-free baseload power from data center and corporate customers
- Established regulatory relationships supporting plant relicensing and capacity additions
- No commercial SMR project has yet been completed and placed into full operation
- History of project cancellations and delays in the SMR industry broadly
- Continued need for capital to fund engineering and pre-construction work ahead of revenue
- Merchant power price volatility can affect earnings in deregulated markets
- Nuclear plant maintenance and relicensing carry ongoing capital requirements
- Long-term demand assumptions tied to data center growth could shift
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