SPCX vs RKLB: SpaceX vs Rocket Lab Stock Comparison: AI Score, Valuation, Performance and Upside
SpaceX is the dominant integrated space platform — launch, broadband, and government services at massive scale — while Rocket Lab is a smaller but vertically integrated space systems company building its own reusable rocket. SpaceX has proven revenue scale through Starlink; Rocket Lab offers higher growth potential from a lower base with its Neutron rocket and expanding satellite manufacturing backlog.
Use this SPCX vs RKLB comparison to evaluate two ways to invest in the commercial space economy. SpaceX offers unmatched scale and Starlink's recurring revenue at a premium valuation; Rocket Lab offers a more accessible entry point with higher growth optionality if Neutron succeeds.
SPCX holds the edge across 2 of 5 key metrics in this comparison. SPCX leads on both revenue growth (91.90%) and operating margin (-1.80%), suggesting a stronger fundamental setup on both dimensions. Analyst consensus implies meaningfully more upside for RKLB (+75.91%) than for SPCX (+58.00%).
Human Wall Street analysts' price targets, typically implying a ~12-month view — a separate signal from this site's own AI Prediction Signal further down the page, which is a 5-/30-day machine-learning forecast based on price history alone.
- Want exposure to the dominant global launch provider and Starlink's growing broadband subscriber base
- Believe Starship will unlock new markets (point-to-point transport, Mars colonization, massive satellite deployment)
- Are comfortable paying a premium valuation for a category-defining space platform with proven execution
- Seek a large-cap space holding with diversified revenue across commercial, government, and consumer segments
- Prefer a higher-growth, earlier-stage space company with more upside from current valuation levels
- Value vertical integration in space systems (satellites, components, and launch in one company)
- Believe Neutron's medium-lift reusable rocket can capture meaningful market share in constellation deployment
- Want space exposure without the post-IPO valuation premium embedded in SpaceX shares
| Metric | SPCX | RKLB |
|---|---|---|
| AI scorei | N/A | 66.3 |
| AI ranki | N/A | #62 |
| Latest closei | $151.85 | $69.89 |
| 1M returni | +10.86% | -3.69% |
| 6M returni | N/A | +2.78% |
| 1Y returni | N/A | +46.24% |
How much would $10,000 be worth today if invested at the start of each period, with all dividends reinvested?
| Period | SPCX | RKLB |
|---|---|---|
| 1Y ago | $9.43K (-5.7%) started 2026-06-12 | $14.03K (+40.3%) started 2025-09-22 |
| 5Y ago | $9.43K (-5.7%) started 2026-06-12 | $48.07K (+380.7%) started 2021-09-22 |
| 10Y ago | $9.43K (-5.7%) started 2026-06-12 | $71.73K (+617.3%) started 2020-11-24 |
Hypothetical — past performance does not guarantee future results.
| Metric | SPCX | RKLB |
|---|---|---|
| Market capi | $1.85T | $40.35B |
| Trailing P/Ei | N/A | N/A |
| Forward P/Ei | 87.68 | 1384.99 |
| Price/Salesi | N/A | N/A |
| EV/Revenuei | 160.10 | 45.83 |
| Analyst targeti | $222.32 | $111.00 |
| Target upsidei | +58.00% | +75.91% |
| Metric | SPCX | RKLB |
|---|---|---|
| Revenue growthi | 91.90% | 62.00% |
| Earnings growthi | N/A | N/A |
| EPS growthi | N/A | N/A |
| FCF margini | N/A | -32.76% |
| Operating margini | -1.80% | -24.57% |
| Profit margini | -35.66% | -21.51% |
| ROIC proxyi | N/A | -7.92% |
| Return on equityi | N/A | -7.92% |
| Dividend yieldi | N/A | N/A |
| Payout ratioi | 0.00% | 0.00% |
| Dividend growth streaki | N/A | N/A |
| Betai | N/A | 2.63 |
| Debt/equityi | 31.21 | 3.83 |
| Current ratioi | 5.12 | 5.48 |
| Quick ratioi | 4.95 | 4.80 |
Over the past year, SPCX and RKLB have moved moderately in the same direction (correlation of 0.46), based on daily returns.
Lower drawdown and smaller single-period drops generally indicate a smoother ride, though they do not guarantee lower future risk.
| Period | Metric | SPCX | RKLB |
|---|---|---|---|
| 1Y | Growthi | -5.65% | +40.31% |
| CAGRi | -18.98% | +40.41% | |
| Volatilityi | 89.46% | 94.22% | |
| Sharpe ratioi | 0.15 | 0.77 | |
| Sortino ratioi | 0.23 | 1.21 | |
| Max drawdowni | 48.78% | 60.99% | |
| Current drawdowni | 28.17% | 53.48% | |
| Avg drawdowni | 31.92% | 25.81% | |
| Ulcer Indexi | 33.58% | 31.70% | |
| Max daily dropi | 16.43% | 14.70% | |
| Max wkly dropi | 26.89% | 25.27% | |
| 5Y | Growthi | -5.65% | +380.67% |
| CAGRi | -18.98% | +36.90% | |
| Volatilityi | 89.46% | 79.08% | |
| Sharpe ratioi | 0.15 | 0.73 | |
| Sortino ratioi | 0.23 | 1.16 | |
| Max drawdowni | 48.78% | 78.32% | |
| Current drawdowni | 28.17% | 53.48% | |
| Avg drawdowni | 31.92% | 46.42% | |
| Ulcer Indexi | 33.58% | 53.39% | |
| Max daily dropi | 16.43% | 17.11% | |
| Max wkly dropi | 26.89% | 26.89% | |
| 10Y | Growthi | -5.65% | +617.26% |
| CAGRi | -18.98% | +40.25% | |
| Volatilityi | 89.46% | 78.72% | |
| Sharpe ratioi | 0.15 | 0.76 | |
| Sortino ratioi | 0.23 | 1.24 | |
| Max drawdowni | 48.78% | 82.96% | |
| Current drawdowni | 28.17% | 53.48% | |
| Avg drawdowni | 31.92% | 46.67% | |
| Ulcer Indexi | 33.58% | 54.93% | |
| Max daily dropi | 16.43% | 17.60% | |
| Max wkly dropi | 26.89% | 26.89% |
| Category | SPCX | RKLB |
|---|---|---|
| Company | SpaceX | Rocket Lab USA, Inc. |
| Sector | Industrials | Industrials |
| Industry | Aerospace & Defense | Aerospace & Defense |
| Core business | Vertically integrated space company operating reusable Falcon 9 and Starship launch vehicles, Starlink satellite broadband constellation, and Starshield government services. | Small-launch provider (Electron rocket), medium-lift vehicle developer (Neutron), and end-to-end space systems company building satellites, spacecraft components, and mission operations. |
| Investor focus | Starlink subscriber growth and ARPU, Starship development milestones, government launch contracts, and path to profitability across the combined launch + connectivity business. | Neutron development timeline, space systems backlog growth, Electron launch cadence, and margin expansion as manufacturing scales. |
- Dominant global launch market share with the lowest cost-per-kilogram to orbit via reusable Falcon 9 boosters
- Starlink is the world's largest satellite broadband constellation with millions of subscribers and growing enterprise and government contracts
- Starship represents the most ambitious next-generation heavy-lift vehicle, with potential to reshape satellite deployment economics and enable Mars missions
- Second-most-frequently launched U.S. orbital rocket (Electron) with a proven track record of reliable small satellite delivery
- Vertically integrated space systems division (solar panels, reaction wheels, flight software, satellite buses) creates a full-stack offering competitors lack
- Neutron medium-lift vehicle targets the high-growth constellation deployment market with reusable architecture
- Post-IPO valuation premium — SPCX debuted at a $1.77 trillion valuation, pricing in decades of execution
- Starship development risk — timeline delays and test failures could weigh on sentiment
- Key-person risk and regulatory complexity tied to Elon Musk's leadership across multiple companies
- Neutron development timeline and capex burn — delays could extend the path to profitability
- Competition from SpaceX rideshare pricing that undercuts dedicated small-launch economics
- Customer concentration risk as a few large constellation contracts drive backlog
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