Data as of Oct 28, 2026.

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AGG vs IAU: Differences, Returns & Fees

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AGG is a bond index fund and IAU a commodity fund, and over the year to Oct 28, 2026, IAU returned +2.7% against −1.4%.

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Net assets: $139.4bn on Oct 27, 2026 for iShares Core U.S. Aggregate Bond ETF, and $60.1bn on Oct 28, 2026 for iShares Gold Trust.

At a glance
−1.4%
AGG total return, 1 year
+2.7%
IAU total return, 1 year
0.03%
AGG expense ratio
0.25%
IAU expense ratio

Pair scorecard

AGG costs 0.22 points a year less; their one-year returns differ by 4.1 points; AGG is 2.3 times larger.

AGG vs IAU: Differences, Returns & Fees
MeasureAGGIAU
Return
Total return, 1 year−1.4%+2.7%
Drawdown
Below its high3.4%, high on Aug 4, 202024.6%, high on Jan 29, 2026
Benchmark
What it tracksBloomberg U.S. Aggregate Bond IndexGold
Cost and size
Expense ratio0.03%0.25%
Net assets, as of Oct 27, 2026$139.4bn$60.3bn
Holdings
Holdings in commonnot published

Method

Side by side

AGG iShares Core U.S. Aggregate Bond ETF IAU iShares Gold Trust
Where it sits Bond ETF Commodity ETF
What it is Tracks an index of US aggregate bonds Holds gold
Total return, 1 year −1.4% +2.7%
Its benchmark over the same days −1.3% (SCHZ) +2.5% (GLD)
Gap to its benchmark −0.1 pts vs SCHZ +0.2 pts vs GLD
Expense ratio 0.03% 0.25%
Holdings 13469 not counted
Net assets, AGG as of Oct 27, 2026 and IAU as of Oct 28, 2026 $139.4bn $60.1bn

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

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About each fund
AGG

AGG tracks an index of US aggregate bonds. Over the year to Oct 28, 2026 it returned −1.4% with distributions reinvested, against −1.3% for its benchmark, the Bloomberg U.S. Aggregate Bond Index. The prospectus expense ratio is 0.03% a year. It sat 3.4% below its high of Aug 4, 2020 on Oct 28, 2026.

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.

Questions people ask

Which returned more over the last year, AGG or IAU?
In the year to Oct 28, 2026, with distributions reinvested, AGG returned −1.4% and IAU +2.7%.
Which is cheaper, AGG or IAU?
AGG is cheaper, by 0.22 percentage points a year. That is about $22 on $10,000 held for a year. Fees come from each fund's own filings.
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ETFIQ, AGG against IAU, data as of Oct 28, 2026. https://etfiq.com/compare/any/agg-vs-iau

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