DUTY vs. IDEF
DUTY (U.S. Defense ETF) and IDEF (iShares Defense Industrials Active ETF) are both Aerospace & Defense funds. DUTY is passively managed, while IDEF is actively managed. A 0.71 correlation means they provide meaningful diversification when combined. DUTY charges 0.45%/yr vs 0.55%/yr for IDEF.
Performance
DUTY vs. IDEF - Performance Comparison
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Returns By Period
DUTY
- 1D
- -1.88%
- 1M
- 1.53%
- 6M
- —
- YTD
- —
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IDEF
- 1D
- -2.29%
- 1M
- 2.93%
- 6M
- -1.81%
- YTD
- 6.71%
- 1Y
- 17.32%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
DUTY vs. IDEF - Yearly Performance Comparison
| 2026 (YTD) | |
|---|---|
DUTY U.S. Defense ETF | 5.47% |
IDEF iShares Defense Industrials Active ETF | -3.05% |
Correlation
The correlation between DUTY and IDEF is 0.71, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Apr 8, 2026 | 0.71 |
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Return for Risk
DUTY vs. IDEF — Risk / Return Rank
DUTY
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
IDEF
DUTY vs. IDEF - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for U.S. Defense ETF (DUTY) and iShares Defense Industrials Active ETF (IDEF). 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.
| DUTY | IDEF | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.14 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 1.11 | — |
| Martin ratioReturn relative to average drawdown | — | 2.57 | — |
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Drawdowns
DUTY vs. IDEF - Drawdown Comparison
The maximum DUTY drawdown since its inception was -13.42%, smaller than the maximum IDEF drawdown of -15.69%. Use the drawdown chart below to compare losses from any high point for DUTY and IDEF.
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Drawdown Indicators
| DUTY | IDEF | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -13.42% | -15.69% | +2.27% |
Max Drawdown (1Y)Largest decline over 1 year | — | -15.69% | — |
Current DrawdownCurrent decline from peak | -4.37% | -10.66% | +6.29% |
Average DrawdownAverage peak-to-trough decline | -4.48% | -4.58% | +0.10% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 6.76% | — |
Volatility
DUTY vs. IDEF - Volatility Comparison
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Volatility by Period
| DUTY | IDEF | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 8.24% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 19.09% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 27.50% | 22.37% | +5.13% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 27.50% | 21.68% | +5.82% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 27.50% | 21.68% | +5.82% |
DUTY vs. IDEF - Expense Ratio Comparison
DUTY has a 0.45% expense ratio, which is lower than IDEF's 0.55% expense ratio.
Dividends
DUTY vs. IDEF - Dividend Comparison
DUTY has not paid dividends to shareholders, while IDEF's dividend yield for the trailing twelve months is around 0.32%.
| Position | TTM | 2025 |
|---|---|---|
DUTY U.S. Defense ETF | 0.00% | 0.00% |
IDEF iShares Defense Industrials Active ETF | 0.32% | 0.17% |
Frequently Asked Questions
DUTY and IDEF have a correlation of 0.71, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, DUTY is cheaper at 0.45% per year. The better choice depends on whether you care most about return, fees, risk, or income.
DUTY is cheaper with a 0.45% expense ratio, compared with 0.55% for IDEF.
IDEF has the higher dividend yield at 0.32%, compared with 0.00% for DUTY.
They also come from different issuers: Aura and iShares. Their fees differ too: 0.45% for DUTY and 0.55% for IDEF.
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