IAUvsOUNZETF Comparison
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iShares Gold Trust ETF (IAU) and VanEck Merk Gold Trust ETF (OUNZ) belong to the same industry segment: Gold. Both IAU and OUNZ have the same Total Expense Ratio (TER) of 0.25%. IAU is down -6.37% year-to-date (YTD) with -$4.37B in YTD flows. OUNZ performs better with -5.82% YTD performance, and +$364M in YTD flows. Run a side-by-side ETF comparison of IAU and OUNZ below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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IAU vs OUNZ performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/28/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IAU OUNZ | -2.49%-1.30% | +0.43%+1.03% | -6.37%-5.82% | +2.11%+2.53% | +100.85%+102.47% | +121.35%+122.90% |
| Flows | IAU OUNZ | -$108M+$8M | +$153M+$107M | -$4.37B+$364M | -$2.98B+$363M | +$6.53B+$951M | +$1.53B+$1.07B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IAU OUNZ | +21.16%+23.45% | +27.08%+28.12% | +20.41%+21.39% | +18.09%+18.74% |
| Max drawdown | IAU OUNZ | -13.98%-14.30% | -26.20%-26.36% | -26.20%-26.36% | -26.20%-26.36% |
| Max drawdown duration | IAU OUNZ | 65d64d | 272d272d | 272d272d | 272d272d |
Trading data
IAU | OUNZ | |
Last sale 10/29/2026 at 1:30 PM | $75.57 | $38.63 |
| Previous close 10/28/2026 | $76.57 | $39.14 |
| Consolidated volume 10/28/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of September 30, 2026
1-year trailing difference
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IAU | OUNZ | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
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Main metrics
Last update 10/29/2026 at 1:30 PM
Live
Closed
IAU | OUNZ | |
|---|---|---|
| Last price | $75.57 | $38.63 |
| 1D performance | -1.31% | -1.30% |
| AuM | $60.06 B | $2.63 B |
| E/R | 0.25% | 0.25% |
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Exposure
Countries
IAU
Data will be available soon
OUNZ
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Sectors
IAU
Data will be available soon
OUNZ
Data will be available soon
Diversification
IAU
Data will be available soon
OUNZ
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Top 15 holdings
Data as of January 1, 1970
IAU
Data will be available soon
OUNZ
Data will be available soon
Frequently asked questions about IAU and OUNZ
How have the IAU and OUNZ ETFs performed in 2026?
As of October 28, 2026, IAU is down -6.37% year-to-date (YTD), while OUNZ has lost -5.82%. That puts OUNZ better performer ahead so far this year.
Which ETF is attracting more investor money: IAU or OUNZ?
Year-to-date, the IAU ETF saw -$4.37B in flows, compared to +$364M for OUNZ.
Which ETF is more volatile: IAU or OUNZ?
Over the past year, IAU had a volatility of 27.08%, while OUNZ experienced 28.12%.
Which ETF is bigger: IAU or OUNZ?
As of October 28, 2026, IAU holds $60.06 B in assets under management (AUM), while OUNZ manages $2.63 B.
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