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Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

MUB vs RSP: how they differ

MUB and RSP hold 0% of their weight in the same names, and RSP returned more over the year.

iShares National Muni Bond ETF and Invesco S&P 500 Equal Weight ETF.

What they hold in common

By the books each fund has filed, MUB and RSP hold 0% of their money in the same securities at the same weight.

Largest positions each one holds and the other does not
Only in MUBOnly in RSP
Board of Regents of the University of Te 0.20%Intel Corp. 0.38%
New York State Thruway Authority 0.16%Seagate Technology Holdings PLC 0.34%
New York State Dormitory Authority 0.14%Advanced Micro Devices, Inc. 0.33%
Houston Higher Education Finance Corp. 0.13%ON Semiconductor Corp. 0.33%
Northwest Independent School District 0.13%Sandisk Corp. 0.32%
Ohio State University (The) 0.13%Western Digital Corp. 0.31%
State of New Jersey 0.13%Ciena Corp. 0.30%
State of California 0.13%Monolithic Power Systems, Inc. 0.29%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Apr 30, 2026 and May 31, 2026.

MUB and RSP on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
MUB
iShares National Muni Bond ETF
RSP
Invesco S&P 500 Equal Weight ETF
Where it sitsCore index fundCore index fund
IssueriSharesInvesco
What it isNational Muni BondS&P 500 equal weight
Total return, 1 year+0.1%+14.8%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−17.4 pts−2.7 pts
Expense ratio0.05%0.20%
Holdings6603503

MUB in plain words

MUB is a bond fund tracking the National Muni Bond. Over the year to Sep 11, 2026 it returned +0.1% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.05% a year. It sat 3.6% below its high of Jul 6, 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 Apr 30, 2026, 99% of the fund by weight is stocks the S&P 500 also holds, across 503 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, MUB or RSP?
In the year to Sep 12, 2026, with distributions reinvested, MUB returned +0.1% and RSP returned +14.8%, so RSP returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MUB or RSP?
MUB charges 0.05% a year and RSP charges 0.20%, so MUB 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.

MUB against RSP, ETFIQ, data as of Sep 12, 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, MUB against RSP, data as of Sep 12, 2026. https://etfiq.com/compare/any/MUB-RSP Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources