KDEF vs. RKLB
KDEF (PLUS Korea Defense Industry Index ETF) is Aerospace & Defense fund tracking the The Korea Defence Industry Index, while RKLB (Rocket Lab USA, Inc.) is a stock. Over the past year, KDEF returned -1.81% vs 41.22% for RKLB. At a 0.23 correlation, their price movements are largely independent.
Performance
KDEF vs. RKLB - Performance Comparison
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Returns By Period
In the year-to-date period, KDEF achieves a -12.28% return, which is significantly lower than RKLB's -3.45% return.
KDEF
- 1D
- 1.01%
- 1M
- -26.57%
- 6M
- -32.11%
- YTD
- -12.28%
- 1Y
- -1.81%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
RKLB
- 1D
- -11.61%
- 1M
- -35.63%
- 6M
- -25.79%
- YTD
- -3.45%
- 1Y
- 41.22%
- 3Y*
- 113.82%
- 5Y*
- —
- 10Y*
- —
KDEF vs. RKLB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
KDEF PLUS Korea Defense Industry Index ETF | -12.28% | 116.28% |
RKLB Rocket Lab USA, Inc. | -3.45% | 143.24% |
Correlation
The correlation between KDEF and RKLB is 0.30, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.30 |
Correlation (All Time) Calculated using the full available price history since Feb 5, 2025 | 0.23 |
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Return for Risk
KDEF vs. RKLB — Risk / Return Rank
KDEF
RKLB
KDEF vs. RKLB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for PLUS Korea Defense Industry Index ETF (KDEF) 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.
| KDEF | RKLB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.47 | ||
| Sortino ratioReturn per unit of downside risk | -1.00 | ||
| Omega ratioGain probability vs. loss probability | 1.03 | 1.15 | -0.12 |
| Calmar ratioReturn relative to maximum drawdown | -0.04 | 0.75 | -0.79 |
| Martin ratioReturn relative to average drawdown | -0.12 | 1.86 | -1.98 |
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Drawdowns
KDEF vs. RKLB - Drawdown Comparison
The maximum KDEF drawdown since its inception was -42.23%, smaller than the maximum RKLB drawdown of -82.96%. Use the drawdown chart below to compare losses from any high point for KDEF and RKLB.
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Drawdown Indicators
| KDEF | RKLB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -42.23% | -82.96% | +40.73% |
Max Drawdown (1Y)Largest decline over 1 year | -42.23% | -55.17% | +12.94% |
Max Drawdown (3Y)Largest decline over 3 years | — | -55.49% | — |
Current DrawdownCurrent decline from peak | -41.65% | -55.17% | +13.52% |
Average DrawdownAverage peak-to-trough decline | -8.65% | -51.07% | +42.42% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 15.13% | 22.21% | -7.08% |
Volatility
KDEF vs. RKLB - Volatility Comparison
The current volatility for PLUS Korea Defense Industry Index ETF (KDEF) is 16.56%, while Rocket Lab USA, Inc. (RKLB) has a volatility of 28.60%. This indicates that KDEF 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
| KDEF | RKLB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 16.56% | 28.60% | -12.04% |
Volatility (6M)Calculated over the trailing 6-month period | 39.99% | 73.35% | -33.36% |
Volatility (1Y)Calculated over the trailing 1-year period | 48.14% | 95.11% | -46.97% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 48.43% | 82.07% | -33.64% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 48.43% | 82.07% | -33.64% |
Dividends
KDEF vs. RKLB - Dividend Comparison
KDEF's dividend yield for the trailing twelve months is around 7.83%, while RKLB has not paid dividends to shareholders.
| Position | TTM | 2025 |
|---|---|---|
KDEF PLUS Korea Defense Industry Index ETF | 7.83% | 5.06% |
RKLB Rocket Lab USA, Inc. | 0.00% | 0.00% |
Frequently Asked Questions
KDEF and RKLB have a correlation of 0.30, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
RKLB has higher volatility (28.60%) compared to KDEF (16.56%). In terms of maximum drawdown, KDEF dropped -42.23% vs RKLB's -82.96%.
RKLB currently has the higher Sharpe Ratio (0.44 vs -0.04), 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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