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Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

IAU vs RSP: how they differ

IAU is a commodity fund and RSP an equity index fund, and over the year IAU returned more, +19.2% against +14.8%.

iShares Gold Trust and Invesco S&P 500 Equal Weight ETF.

IAU and RSP on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
IAU
iShares Gold Trust
RSP
Invesco S&P 500 Equal Weight ETF
Where it sitsCore index fundCore index fund
IssueriSharesInvesco
What it isGoldS&P 500 equal weight
Total return, 1 year+19.2%+14.8%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500+1.7 pts−2.7 pts
Expense ratio0.25%0.20%
Holdingsnot filed506

IAU in plain words

IAU is a commodity fund tracking the Gold. Over the year to Sep 11, 2026 it returned +19.2% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.25% a year. It sat 19.6% below its high of Jan 29, 2026 on Sep 11, 2026.

RSP in plain words

RSP is an index equity fund tracking the S&P 500 equal weight. Over the year to Sep 11, 2026 it returned +14.8% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.20% a year. By its holdings filed for Sep 10, 2026, 99% of the fund by weight is stocks the S&P 500 also holds, across 506 positions, with the top ten at 3.2%. It sat 3.5% below its high of Aug 14, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, IAU or RSP?
In the year to Sep 13, 2026, with distributions reinvested, IAU returned +19.2% and RSP returned +14.8%, so IAU returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IAU or RSP?
IAU charges 0.25% a year and RSP charges 0.20%, so RSP is cheaper. Fees come from each fund's prospectus.

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Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

IAU against RSP, ETFIQ, data as of Sep 13, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, IAU against RSP, data as of Sep 13, 2026. https://etfiq.com/compare/any/iau-vs-rsp Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources