Data as of Oct 28, 2026.
IDEF vs URA: Holdings Overlap & Returns
Over the year to Oct 28, 2026, IDEF returned −5.7% to URA's −30.3%; 2% of their weight is in the same names.
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Net assets: $3.7bn on Oct 28, 2026 for iShares Defense Industrials and Tech Active ETF, and $5.4bn on Oct 12, 2026 for Global X Uranium ETF.
43% of IDEF's weight is in S&P 500 companies and 58% is outside the index. Holdings as of Oct 27, 2026.
0% of URA's weight is in S&P 500 companies and 100% is outside the index. Holdings as of Jul 31, 2026.
Pair scorecard
IDEF costs 0.14 points a year less; their one-year returns differ by 24.6 points; URA is 1.5 times larger.
Points (pts) are percentage points.
| Measure | IDEF | URA |
|---|---|---|
| Return | ||
| Total return, 1 year | −5.7% | −30.3% |
| Drawdown | ||
| Below its all-time high | 17.0%, high on Mar 2, 2026 | 58.4%, high on Feb 2, 2011 |
| Against its benchmark | ||
| What it tracks | Defense | Nuclear and uranium |
| Its benchmark, total return, 1 year | +13.4% | |
| Against its benchmark, 1 year | behind by 43.7 pts | |
| Cost and size | ||
| Expense ratio | 0.55% | 0.69% |
| Net assets, as of Oct 12, 2026 | $3.7bn | $5.4bn |
| Holdings | ||
| Holdings in common | 2% | |
Holdings in common uses holdings dated Jul 31, 2026 and Oct 27, 2026. Method
Risk and return
May 30, 2025 to Oct 23, 2026 · 73 weekly returnsIDEF returned more: +14.9% to +11.7%. IDEF swung less: 22.4% to 42.2%. IDEF fell less at its worst: −17.1% to −40.2%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | IDEF | URA | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +14.9% | +11.7% | IDEF | Price change plus distributions, reinvested. |
| Annualized | +10.4% | +8.2% | IDEF | Total return as a yearly rate. |
| Price return | +14.5% | +6.6% | IDEF | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 22.4% | 42.2% | IDEF | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 14.7% | 28.4% | IDEF | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −17.1% | −40.2% | IDEF | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | 0.38 | 0.30 | IDEF | Return above Treasury bills per unit of volatility. |
| Sortino | 0.58 | 0.45 | IDEF | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.61 | 0.21 | IDEF | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 73 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, IDEF and URA hold 2% of their money in the same securities at the same weight. Holdings dated Jul 31, 2026 and Oct 27, 2026.
half
2% in common
Only in one fund ↓
Window by window
| Total return | vs its benchmark | |||
|---|---|---|---|---|
| Window | IDEF | URA | IDEF | URA |
| 3 months | −3.0% | −2.6% | not measured | −7.0 pts vs ACWI |
| 6 months | −5.8% | −30.9% | not measured | −38.3 pts vs ACWI |
| 1 year | −5.7% | −30.3% | not measured | −43.7 pts vs ACWI |
| 3 years | – | +65.5% | – | −23.4 pts vs ACWI |
| Since launchNot the same days: IDEF May 2025 · URA Nov 2010 | +22.1% | −45.1% | not measured | −417.4 pts vs ACWI |
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Side by side
As of Oct 28, 2026. Source: ETFIQ.
2% of the two portfolios are the same securities at the same weight.
IDEF and URA are built for the same job. How do they differ in cost, holdings and results?
- Theme. IDEF covers Defense and URA covers Nuclear and uranium.
- Concentration. The top ten holdings are 37.3% of IDEF and 63.0% of URA, a gap of 25.7 points.
- What each follows. IDEF follows Defense and URA follows Nuclear and uranium.
Data as of Oct 28, 2026.
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IDEF
By weight, 42% of IDEF's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 92%. The top ten holdings are 37% of the fund across 155 positions, as published by its issuer for Oct 27, 2026. Over the year to Oct 28, 2026 the fund returned −5.7% with distributions reinvested. It sits 17.0% below its all-time high of Mar 2, 2026.
URA
By weight, 0% of URA's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 100%. The top ten holdings are 63% of the fund across 57 positions, as filed for Jul 31, 2026. Over the year to Oct 28, 2026 the fund returned −30.3% with distributions reinvested against +13.4% for its benchmark, the MSCI ACWI Index, so a holder was behind by 43.7 pts. It sits 58.4% below its all-time high of Feb 2, 2011.
Questions people ask
- Do IDEF and URA hold the same stocks?
- By their latest filings, 2% of their books are the same securities at the same weight. Overlap is the sum of the smaller weight of every security they share.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
Every number is an ETFIQ calculation with distributions reinvested.
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ETFIQ, IDEF against URA, data as of Oct 28, 2026. https://etfiq.com/compare/themes/idef-vs-ura
ETFIQ. (Oct 28, 2026). IDEF against URA. Retrieved from https://etfiq.com/compare/themes/idef-vs-ura
[IDEF against URA (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/themes/idef-vs-ura)
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