Data as of Oct 28, 2026.

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Thematic ETFs

GDXJ vs IDEF: Holdings Overlap & Returns

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Over the year to Oct 28, 2026, GDXJ returned +14.8% to IDEF's −5.7%; 0% of their weight is in the same names.

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Net assets: $7.6bn on Oct 27, 2026 for VanEck Junior Gold Miners ETF, and $3.7bn on Oct 28, 2026 for iShares Defense Industrials and Tech Active ETF.

At a glance
0.0%
GDXJ in the S&P 500
42.5%
IDEF in the S&P 500
+14.8%
GDXJ total return, 1 year
−5.7%
IDEF total return, 1 year
GDXJ · 1 year to Oct 28, 2026 100% of its weight is outside the S&P 500
100% of its weight is outside the S&P 5000% of GDXJ's weight is in S&P 500 companies and 100% is outside the index. Holdings as of Oct 22, 2026.0%100%0% of its weight in S&P 500 companiesof its weight outside the S&P 500active share 100% · top ten 41% of the fund · 156 holdings as published by its issuer for Oct 22, 2026 · Nasdaq-100: 0% in100% of its weight is outside the S&P 5000% of GDXJ's weight is in S&P 500 companies and 100% is outside the index. Holdings as of Oct 22, 2026.0%100%0% of its weight in S&P 500 companiesof its weight outside the S&P 500active share 100% · Nasdaq-100: 0% in

0% of GDXJ's weight is in S&P 500 companies and 100% is outside the index. Holdings as of Oct 22, 2026.

IDEF · 1 year to Oct 28, 2026 58% of its weight is outside the S&P 500
58% of its weight is outside the S&P 50043% of IDEF's weight is in S&P 500 companies and 58% is outside the index. Holdings as of Oct 27, 2026.43%58%of its weight in S&P 500 companiesof its weight outside the S&P 500active share 92% · top ten 37% of the fund · 155 holdings as published by its issuer for Oct 27, 2026 · Nasdaq-100: 11% in58% of its weight is outside the S&P 50043% of IDEF's weight is in S&P 500 companies and 58% is outside the index. Holdings as of Oct 27, 2026.43%58%in the S&P 500outside the S&P 500active share 92% · Nasdaq-100: 11% in

43% of IDEF's weight is in S&P 500 companies and 58% is outside the index. Holdings as of Oct 27, 2026.

Pair scorecard

GDXJ costs 0.03 points a year less; their one-year returns differ by 20.5 points; GDXJ is 2.1 times larger.

Points (pts) are percentage points.

GDXJ vs IDEF: Holdings Overlap & Returns
MeasureGDXJIDEF
Return
Total return, 1 year+14.8%−5.7%
Drawdown
Below its all-time high33.1%, high on Feb 27, 202617.0%, high on Mar 2, 2026
Against its benchmark
What it tracksGold minersDefense
Its benchmark, total return, 1 year+13.4%
Against its benchmark, 1 yearahead by 1.4 pts
Cost and size
Expense ratio0.52%0.55%
Net assets, as of Oct 27, 2026$7.6bn$3.7bn
Holdings
Holdings in common0%

Holdings in common uses holdings dated Oct 27, 2026. Method

Risk and return

May 30, 2025 to Oct 23, 2026 · 73 weekly returns
GDXJ IDEF
Return
Total return edge GDXJ +55.5% +14.9%
Annualized edge GDXJ +36.9% +10.4%
Price return edge GDXJ +52.1% +14.5%
Risk
Volatility edge IDEF 52.1% 22.4%
Max drawdown edge IDEF −41.0% −17.1%
Risk-adjusted
Sharpe edge GDXJ 0.79 0.38
Sortino edge GDXJ 1.21 0.58
Calmar edge GDXJ 0.90 0.61
Reading

GDXJ returned more: +55.5% to +14.9%. IDEF swung less: 22.4% to 52.1%. IDEF fell less at its worst: −17.1% to −41.0%.

Full scorecard

9 measures, with how each is measured
Open ↓
Risk and return: GDXJ vs IDEF: Holdings Overlap & Returns
MeasureGDXJIDEFEdgeHow it is measured
Return
Total return+55.5%+14.9%GDXJPrice change plus distributions, reinvested.
Annualized+36.9%+10.4%GDXJTotal return as a yearly rate.
Price return+52.1%+14.5%GDXJPrice change alone, distributions left out.
Risk
Volatility52.1%22.4%IDEFSpread of weekly returns, annualized. Lower is steadier.
Downside deviation33.9%14.7%IDEFLike volatility, counting only weeks below the Treasury bill rate.
Max drawdown−41.0%−17.1%IDEFDeepest fall from a high to the low after it.
Risk-adjusted
Sharpe0.790.38GDXJReturn above Treasury bills per unit of volatility.
Sortino1.210.58GDXJReturn above Treasury bills per unit of downside deviation.
Calmar0.900.61GDXJAnnualized 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

0%

By the books each fund has filed, GDXJ and IDEF hold 0% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.

0 half 100%

half

0% in common

Positions both hold · largest shared weight first GDXJ IDEF
Only in one fund ↓
Only in GDXJ
Alamos Gold Inc 6.86%
Equinox Gold Corp 6.08%
Coeur Mining Inc 5.92%
Endeavour Mining Plc 5.76%
Iamgold Corp 5.19%
Industrias Penoles Sab De Cv 2.58%
First Majestic Silver Corp 2.27%
Hecla Mining Co 2.26%
Only in IDEF
RTX 7.05%
LOCKHEED MARTIN 5.27%
GENERAL DYNAMICS CORP 4.15%
NORTHROP GRUMMAN CORP 3.92%
BOEING 3.44%
ROLLS-ROYCE HOLDINGS PLC 3.06%
PALANTIR TECHNOLOGIES CLASS A 3.02%
SPACE EXPLORATION TECHNOLOGIES COR 2.93%
Check overlap with more funds →

Window by window

Window by window: GDXJ vs IDEF: Holdings Overlap & Returns
Total returnvs its benchmark
WindowGDXJIDEFGDXJIDEF
3 months+9.9%−3.0%+5.5 pts vs ACWInot measured
6 months−8.0%−5.8%−15.4 pts vs ACWInot measured
1 year+14.8%−5.7%+1.4 pts vs ACWInot measured
3 years+220.2%–+131.3 pts vs ACWI–
Since launchNot the same days: GDXJ Nov 2009 · IDEF May 2025+44.9%+22.1%not measurednot measured

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Side by side

GDXJ VanEck Junior Gold Miners ETF · Holds 156 stocks in gold miners, 0% of its weight in S&P 500 companies IDEF iShares Defense Industrials and Tech Active ETF · Holds 155 stocks in defense, 42% of its weight in S&P 500 companies
Theme Gold miners Defense
In the S&P 500 0.0% 42.5%
Active share vs the S&P 500 100.0% 92.2%
In the Nasdaq-100 0.0% 10.7%
Holdings 156 155
Top ten, share of the fund 40.8% 37.3%
Expense ratio 0.52% 0.55%
Fee for the differing part 0.52% 0.60%
Total return, 1 year +14.8% −5.7%
vs its benchmark +1.4 pts vs ACWI not measured
Below its high −33.1% −17.0%
Net assets, GDXJ as of Oct 27, 2026 and IDEF as of Oct 28, 2026 $7.6bn $3.7bn

As of Oct 28, 2026. Source: ETFIQ.

0% of the two portfolios are the same securities at the same weight.

Client brief · page 1 of 2 Report BR-C549767EB7

GDXJ and IDEF are built for the same job. How do they differ in cost, holdings and results?

  1. Theme. GDXJ covers Gold miners and IDEF covers Defense.
  2. What each follows. GDXJ follows Gold miners and IDEF follows Defense.
  3. Holdings in common. 0% of the weight is in the same securities (holdings dated Oct 27, 2026).

Data as of Oct 28, 2026.

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About each fund
GDXJ

By weight, 0% of GDXJ'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 41% of the fund across 156 positions, as published by its issuer for Oct 27, 2026. Over the year to Oct 28, 2026 the fund returned +14.8% with distributions reinvested against +13.4% for its benchmark, the MSCI ACWI Index, so a holder was ahead by 1.4 pts. It sits 33.1% below its all-time high of Feb 27, 2026.

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.

Questions people ask

Do GDXJ and IDEF hold the same stocks?
By their latest filings, 0% of their books are the same securities at the same weight. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, GDXJ or IDEF?
GDXJ has 0% of its weight in S&P 500 names and IDEF has 42%, so GDXJ differs more from the index.
Which is cheaper, GDXJ or IDEF?
GDXJ charges 0.52% a year and IDEF charges 0.55%, so GDXJ is cheaper. Fees come from each fund's prospectus.
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ETFIQ, GDXJ against IDEF, data as of Oct 28, 2026. https://etfiq.com/compare/themes/gdxj-vs-idef

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