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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

IYW vs MUB: how they differ

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

iShares U.S. Technology ETF and iShares National Muni Bond ETF.

What they hold in common

By the books each fund has filed, IYW and MUB 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 IYWOnly in MUB
NVIDIA CORPORATION 16.25%Board of Regents of the University of Te 0.20%
APPLE INC. 13.65%New York State Thruway Authority 0.16%
ALPHABET INC. 7.84%New York State Dormitory Authority 0.14%
ALPHABET INC. 6.34%Houston Higher Education Finance Corp. 0.13%
MICROSOFT CORPORATION 3.99%Northwest Independent School District 0.13%
BROADCOM INC. 3.78%Ohio State University (The) 0.13%
ADVANCED MICRO DEVICES, INC. 3.50%State of New Jersey 0.13%
MICRON TECHNOLOGY, INC. 2.98%State of California 0.13%

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.

IYW and MUB on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
IYW
iShares U.S. Technology ETF
MUB
iShares National Muni Bond ETF
Where it sitsCore index fundCore index fund
IssueriSharesiShares
What it isU.S. TechnologyNational Muni Bond
Total return, 1 year+34.9%+0.1%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500+17.4 pts−17.4 pts
Expense ratio0.37%0.05%
Holdings1396603

IYW in plain words

IYW is an index equity fund tracking the U.S. Technology. Over the year to Sep 11, 2026 it returned +34.9% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.37% a year. By its holdings filed for Apr 30, 2026, 96% of the fund by weight is stocks the S&P 500 also holds, across 139 positions, with the top ten at 63.7%.

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.

Questions people ask

Which returned more over the last year, IYW or MUB?
In the year to Sep 12, 2026, with distributions reinvested, IYW returned +34.9% and MUB returned +0.1%, so IYW returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IYW or MUB?
IYW charges 0.37% a year and MUB charges 0.05%, 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.

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

A comparison is not a recommendation. Standards and sources