IAUMvsIAUETF Comparison
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The ETFs iShares Gold Trust Micro (IAUM) and iShares Gold Trust ETF (IAU) track the LBMA London Gold Market Fixing Price PM Index - USD and belong to the same industry segment: Gold. IAUM is less expensive with a Total Expense Ratio (TER) of 0.09%, versus 0.25% for IAU. IAUM is up 9.99% year-to-date (YTD) with +$769M in YTD flows. IAU performs worse with 9.94% YTD performance, and -$2.66B in YTD flows. Run a side-by-side ETF comparison of IAUM and IAU 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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IAUM vs IAU performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 04/01/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IAUM IAU | -10.82%-10.84% | +8.85%+8.80% | +9.99%+9.94% | +51.12%+50.86% | +138.45%+137.19% | n/a+171.25% |
| Flows | IAUM IAU | -$137M-$3.59B | +$769M-$2.66B | +$769M-$2.66B | +$3.35B+$5.46B | +$3.91B+$5.72B | -+$3.16B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IAUM IAU | +38.66%+38.66% | +25.84%+25.84% | +18.41%+18.41% | n/a+16.90% |
| Max drawdown | IAUM IAU | -18.35%-18.38% | -18.35%-18.38% | -18.35%-18.38% | n/a-20.25% |
| Max drawdown duration | IAUM IAU | 62d62d | 62d62d | 62d62d | n/a400d |
Trading data
IAUM | IAU | |
Last sale 4/2/2026 at 5:25 PM | $46.48 | $87.75 |
| Previous close 04/01/2026 | $47.50 | $89.68 |
| Consolidated volume 04/01/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of April 2, 2026
1-year trailing difference
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IAUM | IAU | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
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Main metrics
Last update 4/2/2026 at 5:25 PM
Live
Closed
IAUM | IAU | |
|---|---|---|
| Last price | $46.48 | $87.75 |
| 1D performance | -2.15% | -2.15% |
| AuM | $7.36 B | $72.61 B |
| E/R | 0.09% | 0.25% |
Characteristics
IAUM | IAU | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | iShares |
| Benchmark | LBMA London Gold Market Fixing Price PM Index | LBMA London Gold Market Fixing Price PM Index |
| N° of holdings | - | - |
| Asset class | Commodities | Commodities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | June 15, 2021 | January 21, 2005 |
| ESG | No | No |
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Exposure
Countries
IAUM
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IAU
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Sectors
IAUM
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IAU
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Diversification
IAUM
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IAU
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Top 15 holdings
Data as of January 1, 1970
IAUM
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IAU
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Frequently asked questions about IAUM and IAU
How have the IAUM and IAU ETFs performed in 2026?
As of April 1, 2026, IAUM is up 9.99% year-to-date (YTD), while IAU has returned 9.94%. That puts IAUM better performer ahead so far this year.
Which ETF is attracting more investor money: IAUM or IAU?
Year-to-date, the IAUM ETF saw +$769M in flows, compared to -$2.66B for IAU.
Which ETF is more volatile: IAUM or IAU?
Over the past year, IAUM had a volatility of 25.84%, while IAU experienced 25.84%.
Which ETF is bigger: IAUM or IAU?
As of April 1, 2026, IAUM holds $7.36 B in assets under management (AUM), while IAU manages $72.61 B.
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