Data as of Oct 28, 2026.

vsCompare their flowsaskIQ about these two fundsAsk the committee about these two funds
Across categories

IAU vs IBB: Differences, Returns & Fees

Share
Share on XDownload as PDF

Over the year to Oct 28, 2026, IAU returned +2.7% to IBB's +37.5%, and IAU charges 0.25% to IBB's 0.44%.

askIQ about this page

askIQ about IAU and IBB

Net assets: $60.1bn on Oct 28, 2026 for iShares Gold Trust, and $11.0bn on Oct 27, 2026 for iShares Biotechnology ETF.

At a glance
+2.7%
IAU total return, 1 year
+37.5%
IBB total return, 1 year
0.25%
IAU expense ratio
0.44%
IBB expense ratio

Pair scorecard

IAU costs 0.19 points a year less; their one-year returns differ by 34.8 points; IAU is 5.5 times larger.

IAU vs IBB: Differences, Returns & Fees
MeasureIAUIBB
Return
Total return, 1 year+2.7%+37.5%
Drawdown
Below its high24.6%, high on Jan 29, 2026
Benchmark
What it tracksGoldBiotech
Cost and size
Expense ratio0.25%0.44%
Net assets, as of Oct 27, 2026$60.3bn$11.0bn
Active share vs the S&P 50099%
Holdings
Holdings in commonnot published
In the S&P 500, by weight40%
Top ten holdings, share of the fund50%

Method

Side by side

IAU iShares Gold Trust IBB iShares Biotechnology ETF
Where it sits Commodity ETF Thematic ETF
What it is Holds gold Biotech
Total return, 1 year +2.7% +37.5%
Its benchmark over the same days +2.5% (GLD) not measured
Gap to its benchmark +0.2 pts vs GLD not measured
Expense ratio 0.25% 0.44%
Holdings not counted 245
Net assets, IAU as of Oct 28, 2026 and IBB as of Oct 27, 2026 $60.1bn $11.0bn

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

Alert

IAU and IBB flows, by email on Sundays.

One-click unsubscribe. See Privacy.

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.

IBB

By weight, 40% of IBB's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 99%. The top ten holdings are 50% of the fund across 245 positions, as published by its issuer for Oct 27, 2026. Over the year to Oct 28, 2026 the fund returned +37.5% with distributions reinvested.

Questions people ask

Are IAU and IBB in the same category?
IAU is a commodity ETF and IBB is a thematic ETF, so they do different jobs. The table compares what both publish: return, cost and holdings.
Which returned more over the last year, IAU or IBB?
In the year to Oct 28, 2026, with distributions reinvested, IAU returned +2.7% and IBB +37.5%.
Which is cheaper, IAU or IBB?
IAU is cheaper, by 0.19 percentage points a year. That is about $19 on $10,000 held for a year. Fees come from each fund's own filings.
Other comparisons
Cite this pageCitation, APA and Markdown

ETFIQ, IAU against IBB, data as of Oct 28, 2026. https://etfiq.com/compare/any/iau-vs-ibb

Open data →

Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.