Data as of .
AUMI vs GDXJ: which is really different?
AUMI and GDXJ hold 37% of their weight in the same names, and GDXJ returned more over the year.
ETFIQ Off-Index Score: AUMI scores higher
How much of it is not the index it is sold as an alternative to?
A percentile among the 379 thematic ETFs with a holdings filing. It is a position in a set, not a rating, and neither end of it is a recommendation. All thematic ETFs ranked by it · How it is computed
37% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, AUMI and GDXJ hold 37% of their money in the same securities at the same weight.
| Holding | AUMI | GDXJ |
|---|---|---|
| Endeavour Mining PLC | 5.33% | 5.64% |
| IAMGOLD Corp | 4.86% | 5.14% |
| Alamos Gold Inc | 4.45% | 6.53% |
| Equinox Gold Corp | 4.09% | 6.04% |
| G Mining Ventures Corp | 3.76% | 1.90% |
| Lundin Gold Inc | 4.03% | 1.76% |
| B2Gold Corp | 3.52% | 1.70% |
| Perseus Mining Ltd | 3.35% | 1.22% |
| Zhaojin Mining Industry Co Ltd | 2.60% | 1.12% |
| K92 Mining Inc | 2.80% | 1.08% |
| Ramelius Resources Ltd | 2.85% | 1.07% |
| Aris Mining Corp | 2.21% | 0.98% |
| Only in AUMI | Only in GDXJ |
|---|---|
| DPM Metals Inc 5.26% | Coeur Mining Inc 6.84% |
| Anglogold Ashanti Plc 4.91% | Industrias Penoles Sab De Cv 2.59% |
| Agnico Eagle Mines Ltd 4.76% | Hecla Mining Co 2.43% |
| Kinross Gold Corp 4.59% | First Majestic Silver Corp 2.39% |
| Northern Star Resources Ltd 4.34% | Dundee Precious Metals Inc 1.72% |
| Gold Fields Ltd 4.10% | Eldorado Gold Corp 1.68% |
| Orla Mining Ltd 2.23% | Harmony Gold Mining Co Ltd 1.65% |
| Wesdome Gold Mines Ltd 1.95% | Cia De Minas Buenaventura Saa 1.59% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026 and Sep 18, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| AUMI | GDXJ | AUMI | GDXJ | AUMI | GDXJ | |
| 3 months | +17.9% | +16.1% | +15.7 pts | +13.8 pts | +20.4 pts | +18.5 pts |
| 6 months | +18.6% | +18.8% | +0.6 pts | +0.7 pts | −5.6 pts | −5.5 pts |
| 1 year | +38.2% | +45.2% | +21.6 pts | +28.7 pts | +16.4 pts | +23.5 pts |
| 3 years | not published | +274.9% | not published | +196.5 pts | not published | +176.7 pts |
| Since launch | +286.4% | +64.0% | +218.6 pts | −739.5 pts | +204.9 pts | −1626.2 pts |
| AUMI Themes Gold Miners ETF Holds 31 stocks in gold miners, 0% of its weight in S&P 500 companies | GDXJ VanEck Junior Gold Miners ETF Holds 157 stocks in gold miners, 0% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | Themes | VanEck |
| Theme | Gold miners | Gold miners |
| In the S&P 500 | 0.0% | 0.0% |
| Active share vs the S&P 500 | 100.0% | 100.0% |
| In the Nasdaq-100 | 0.0% | 0.0% |
| Holdings | 31 | 157 |
| Top ten, share of the fund | 46.9% | 41.6% |
| Expense ratio | 0.35% | 0.52% |
| Fee for the differing part | 0.35% | 0.52% |
| Total return, 1 year | +38.2% | +45.2% |
| vs the S&P 500 | +21.6 pts | +28.7 pts |
| vs the Nasdaq-100 | +16.4 pts | +23.5 pts |
| Below its high | −19.2% | −20.3% |
| Net assets | $26m | $9.2bn |
AUMI in plain words
By weight, 0% of AUMI'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 47% of the fund across 31 positions, as filed for Jun 30, 2026. Over the year to Sep 18, 2026 the fund returned +38.2% with distributions reinvested against +16.6% for the S&P 500, so a holder was ahead by 21.6 pts. It sits 19.2% below its all-time high of Feb 27, 2026.
GDXJ in plain words
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 42% of the fund across 157 positions, as published by its issuer for Sep 18, 2026. Over the year to Sep 18, 2026 the fund returned +45.2% with distributions reinvested against +16.6% for the S&P 500, so a holder was ahead by 28.7 pts. It sits 20.3% below its all-time high of Feb 27, 2026.
Questions people ask
- Do AUMI and GDXJ hold the same stocks?
- By their latest filings, 37% of their books are the same securities at the same weight, which is a meaningful overlap. Overlap is the sum of the smaller weight of every security they share.
- Which is more different from the S&P 500, AUMI or GDXJ?
- AUMI has 0% of its weight in S&P 500 names and GDXJ has 0%, so AUMI differs more from the index.
- Which is cheaper, AUMI or GDXJ?
- AUMI charges 0.35% a year and GDXJ charges 0.52%, so AUMI is cheaper. Fees come from each fund's prospectus.
Other comparisons
Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, AUMI against GDXJ, data as of Sep 18, 2026. https://etfiq.com/compare/themes/aumi-vs-gdxj Free to use with attribution; the underlying files are at Open data.