WLDN vs. RKLB
WLDN (Willdan Group, Inc.) and RKLB (Rocket Lab USA, Inc.) are both stocks. Both are in the Industrials sector — WLDN in Engineering & Construction, RKLB in Aerospace & Defense. Over the past 3 years, WLDN returned 71.89%/yr vs 158.32%/yr for RKLB. At a 0.35 correlation, their price movements are largely independent.
Performance
WLDN vs. RKLB - Performance Comparison
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Returns By Period
In the year-to-date period, WLDN achieves a -7.10% return, which is significantly lower than RKLB's 46.77% return.
WLDN
- 1D
- -1.21%
- 1M
- 5.75%
- YTD
- -7.10%
- 6M
- -6.97%
- 1Y
- 70.93%
- 3Y*
- 71.89%
- 5Y*
- 19.75%
- 10Y*
- 24.56%
RKLB
- 1D
- -10.79%
- 1M
- -17.53%
- YTD
- 46.77%
- 6M
- 66.51%
- 1Y
- 287.84%
- 3Y*
- 158.32%
- 5Y*
- —
- 10Y*
- —
WLDN vs. RKLB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
WLDN Willdan Group, Inc. | -7.10% | 172.14% | 77.16% | 20.45% | -49.29% | -5.68% |
RKLB Rocket Lab USA, Inc. | 46.77% | 173.89% | 360.58% | 46.68% | -69.30% | 8.67% |
Correlation
The correlation between WLDN and RKLB is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.34 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.36 |
Correlation (All Time) Calculated using the full available price history since Aug 24, 2021 | 0.35 |
Fundamentals
WLDN:
$1.48B
RKLB:
$61.99B
WLDN:
$3.71
RKLB:
-$0.33
WLDN:
2.14
RKLB:
83.69
WLDN:
4.78
RKLB:
27.38
WLDN:
$684.28M
RKLB:
$679.58M
WLDN:
$261.18M
RKLB:
$248.43M
WLDN:
$64.86M
RKLB:
-$177.36M
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Return for Risk
WLDN vs. RKLB — Risk / Return Rank
WLDN
RKLB
WLDN vs. RKLB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Willdan Group, Inc. (WLDN) and Rocket Lab USA, Inc. (RKLB). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| WLDN | RKLB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.02 | ||
| Sortino ratioReturn per unit of downside risk | -1.40 | ||
| Omega ratioGain probability vs. loss probability | 1.26 | 1.38 | -0.12 |
| Calmar ratioReturn relative to maximum drawdown | 1.41 | 6.74 | -5.33 |
| Martin ratioReturn relative to average drawdown | 2.99 | 15.44 | -12.44 |
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Drawdowns
WLDN vs. RKLB - Drawdown Comparison
The maximum WLDN drawdown since its inception was -89.19%, which is greater than RKLB's maximum drawdown of -82.96%. Use the drawdown chart below to compare losses from any high point for WLDN and RKLB.
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Drawdown Indicators
| WLDN | RKLB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -89.19% | -82.96% | -6.23% |
Max Drawdown (1Y)Largest decline over 1 year | -50.41% | -43.01% | -7.40% |
Max Drawdown (3Y)Largest decline over 3 years | -50.41% | -55.49% | +5.08% |
Max Drawdown (5Y)Largest decline over 5 years | -72.59% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -78.71% | — | — |
Current DrawdownCurrent decline from peak | -28.63% | -31.84% | +3.21% |
Average DrawdownAverage peak-to-trough decline | -42.35% | -51.29% | +8.94% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 23.78% | 18.75% | +5.03% |
Volatility
WLDN vs. RKLB - Volatility Comparison
The current volatility for Willdan Group, Inc. (WLDN) is 8.81%, while Rocket Lab USA, Inc. (RKLB) has a volatility of 31.54%. This indicates that WLDN experiences smaller price fluctuations and is considered to be less risky than RKLB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| WLDN | RKLB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 8.81% | 31.54% | -22.73% |
Volatility (6M)Calculated over the trailing 6-month period | 50.77% | 73.47% | -22.70% |
Volatility (1Y)Calculated over the trailing 1-year period | 65.10% | 93.03% | -27.93% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 55.91% | 81.62% | -25.71% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 54.13% | 81.62% | -27.49% |
Dividends
WLDN vs. RKLB - Dividend Comparison
Neither WLDN nor RKLB has paid dividends to shareholders.
Financials
WLDN vs. RKLB - Financials Comparison
This section allows you to compare key financial metrics between Willdan Group, Inc. and Rocket Lab USA, Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
WLDN vs. RKLB - Profitability Comparison
WLDN - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Willdan Group, Inc. reported a gross profit of 63.16M and revenue of 155.11M. Therefore, the gross margin over that period was 40.7%.
RKLB - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Rocket Lab USA, Inc. reported a gross profit of 76.49M and revenue of 200.35M. Therefore, the gross margin over that period was 38.2%.
WLDN - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Willdan Group, Inc. reported an operating income of 7.29M and revenue of 155.11M, resulting in an operating margin of 4.7%.
RKLB - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Rocket Lab USA, Inc. reported an operating income of -55.97M and revenue of 200.35M, resulting in an operating margin of -27.9%.
WLDN - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Willdan Group, Inc. reported a net income of 8.53M and revenue of 155.11M, resulting in a net margin of 5.5%.
RKLB - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Rocket Lab USA, Inc. reported a net income of -45.02M and revenue of 200.35M, resulting in a net margin of -22.5%.
Frequently Asked Questions
WLDN and RKLB have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
RKLB has higher volatility (31.54%) compared to WLDN (8.81%). In terms of maximum drawdown, WLDN dropped -89.19% vs RKLB's -82.96%.
RKLB currently has the higher Sharpe Ratio (3.12 vs 1.09), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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