Data as of Oct 28, 2026.

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IAU vs MTUM: Differences, Returns & Fees

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IAU is a commodity fund and MTUM an equity index fund, and over the year to Oct 28, 2026, MTUM returned +18.4% against +2.7%.

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Net assets: $60.1bn on Oct 28, 2026 for iShares Gold Trust, and $18.7bn on Oct 27, 2026 for iShares MSCI USA Momentum Factor ETF.

At a glance
+2.7%
IAU total return, 1 year
+18.4%
MTUM total return, 1 year
0.25%
IAU expense ratio
0.15%
MTUM expense ratio

Pair scorecard

MTUM costs 0.10 points a year less; their one-year returns differ by 15.7 points; IAU is 3.2 times larger.

IAU vs MTUM: Differences, Returns & Fees
MeasureIAUMTUM
Return
Total return, 1 year+2.7%+18.4%
Drawdown
Below its high24.6%, high on Jan 29, 202611.9%, high on Jun 22, 2026
Benchmark
What it tracksGoldMSCI USA Momentum SR Variant Index
Cost and size
Expense ratio0.25%0.15%
Net assets, as of Oct 27, 2026$60.3bn$18.7bn
Holdings
Holdings in commonnot published
In the S&P 500, by weight93%
Top ten holdings, share of the fund35.5%

Method

Side by side

IAU iShares Gold Trust MTUM iShares MSCI USA Momentum Factor ETF
Where it sits Commodity ETF Stock ETF
What it is Holds gold Tracks the MSCI USA Momentum Factor
Total return, 1 year +2.7% +18.4%
Its benchmark over the same days +2.5% (GLD) +13.6% (MLRG)
Gap to its benchmark +0.2 pts vs GLD +4.8 pts vs MLRG
Expense ratio 0.25% 0.15%
Holdings not counted 126
Net assets, IAU as of Oct 28, 2026 and MTUM as of Oct 27, 2026 $60.1bn $18.7bn

IAU and MTUM on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
IAU

Its expense ratio is 0.25% a year, for the three months to Jun 30, 2026, as its 10-Q states.

IAU holds gold. Over the year to Oct 28, 2026 it returned +2.7% with distributions reinvested, against +2.5% for its benchmark, the price of gold. It sat 24.6% below its high of Jan 29, 2026 on Oct 28, 2026.

MTUM

MTUM tracks the MSCI USA Momentum Factor. Over the year to Oct 28, 2026 it returned +18.4% with distributions reinvested, against +13.6% for its benchmark, the MSCI USA Index. The prospectus expense ratio is 0.15% a year. By its holdings published by its issuer for Oct 27, 2026, 93% of the fund by weight is stocks the S&P 500 also holds, across 126 positions, with the top ten at 35.5%. It sat 11.9% below its high of Jun 22, 2026 on Oct 28, 2026.

Questions people ask

Which returned more over the last year, IAU or MTUM?
In the year to Oct 28, 2026, with distributions reinvested, IAU returned +2.7% and MTUM +18.4%.
Which is cheaper, IAU or MTUM?
MTUM is cheaper, by 0.10 percentage points a year. That is about $10 on $10,000 held for a year. Fees come from each fund's own filings.
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ETFIQ, IAU against MTUM, data as of Oct 28, 2026. https://etfiq.com/compare/any/iau-vs-mtum

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