Data as of Oct 28, 2026.

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IAU vs SPYM: Differences, Returns & Fees

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IAU is a commodity fund and SPYM an equity index fund, and over the year to Oct 28, 2026, SPYM returned +13.7% against +2.7%.

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Net assets: $60.1bn on Oct 28, 2026 for iShares Gold Trust, and $185.0bn on Oct 27, 2026 for State Street SPDR Portfolio S&P 500 ETF.

At a glance
+2.7%
IAU total return, 1 year
+13.7%
SPYM total return, 1 year
0.25%
IAU expense ratio
0.02%
SPYM expense ratio

Pair scorecard

SPYM costs 0.23 points a year less; their one-year returns differ by 11.0 points; SPYM is 3.1 times larger.

IAU vs SPYM: Differences, Returns & Fees
MeasureIAUSPYM
Return
Total return, 1 year+2.7%+13.7%
Drawdown
Below its high24.6%, high on Jan 29, 2026
Benchmark
What it tracksGoldS&P 500 Index
Cost and size
Expense ratio0.25%0.02%
Net assets, as of Oct 27, 2026$60.3bn$185.0bn
Holdings
Holdings in commonnot published
In the S&P 500, by weight100%
Top ten holdings, share of the fund38.1%

Method

Side by side

IAU iShares Gold Trust SPYM State Street SPDR Portfolio S&P 500 ETF
Where it sits Commodity ETF Stock ETF
What it is Holds gold Tracks the S&P 500
Total return, 1 year +2.7% +13.7%
Its benchmark over the same days +2.5% (GLD) +13.7% (IVV)
Gap to its benchmark +0.2 pts vs GLD 0.0 pts vs IVV
Expense ratio 0.25% 0.02%
Holdings not counted 506
Net assets, IAU as of Oct 28, 2026 and SPYM as of Oct 27, 2026 $60.1bn $185.0bn
Former ticker none SPLG

IAU and SPYM 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.

SPYM

SPYM tracks the S&P 500. Over the year to Oct 28, 2026 it returned +13.7% with distributions reinvested, against +13.7% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.02% a year. By its holdings published by its issuer for Oct 27, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 506 positions, with the top ten at 38.1%.

Questions people ask

Which returned more over the last year, IAU or SPYM?
In the year to Oct 28, 2026, with distributions reinvested, IAU returned +2.7% and SPYM +13.7%.
Which is cheaper, IAU or SPYM?
SPYM is cheaper, by 0.23 percentage points a year. That is about $23 on $10,000 held for a year. Fees come from each fund's own filings.
Other comparisons
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ETFIQ, IAU against SPYM, data as of Oct 28, 2026. https://etfiq.com/compare/any/iau-vs-spym

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