Which returned more over the last year, IBIT or MUB?

In the year to Sep 21, 2026, with distributions reinvested, IBIT returned −31.1% and MUB returned −0.3%, so MUB returned more.

Which is cheaper, IBIT or MUB?

IBIT charges 0.25% a year and MUB charges 0.05%, so MUB is cheaper. Fees come from each fund's prospectus.

Data as of Sep 21, 2026.

ETFIQetfiq.com · independent ETF data

IBIT vs MUB: how they differ

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

iShares Bitcoin Trust ETF and iShares National Muni Bond ETF.

What they hold in common

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

Positions IBIT and MUB both hold, largest shared weight first
Holding	IBIT	MUB
USD CASH	0.00%	-0.81%

Only in each
Only in IBIT	Only in MUB
BITCOIN 100.00%	BLACKROCK LIQ MUNICASH CL INS MMF 1.61%
	UNIVERSITY TEX UNIV REVS 0.19%
	NEW YORK ST TWY AUTH ST PERS I 0.15%
	SAN ANTONIO TEX WTR REV 0.15%
	TRIBOROUGH BRDG & TUNL AUTH NY 0.14%
	CALIFORNIA ST 0.12%
	HOUSTON TEX HIGHER ED FIN CORP 0.12%
	NEW JERSEY ST 0.12%

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 Sep 18, 2026.

IBIT and MUB on the fields both publish, as of Sep 21, 2026. Source: ETFIQ.
	IBIT iShares Bitcoin Trust ETF	MUB iShares National Muni Bond ETF
Where it sits	Core fund	Core fund
Issuer	iShares	iShares
What it is	Holds bitcoin	Tracks an index of National Muni Bond
Total return, 1 year	−31.1%	−0.3%
S&P 500 over the same days	+16.6%	+16.6%
Gap to the S&P 500	−47.6 pts	−16.9 pts
Expense ratio	0.25%	0.05%
Holdings	2	7162
Net assets	$63.7bn	$45.7bn

IBIT in plain words

IBIT holds bitcoin. Over the year to Sep 18, 2026 it returned −31.1% with distributions reinvested, against +16.6% for the S&P 500 and +21.8% for the Nasdaq-100. The prospectus expense ratio is 0.25% a year. It sat 35.5% below its high of Oct 6, 2025 on Sep 18, 2026.

MUB in plain words

MUB tracks an index of National Muni Bond. Over the year to Sep 18, 2026 it returned −0.3% with distributions reinvested, against +16.6% for the S&P 500 and +21.8% for the Nasdaq-100. The prospectus expense ratio is 0.05% a year. It sat 3.8% below its high of Jul 6, 2026 on Sep 18, 2026.

Questions people ask

Which returned more over the last year, IBIT or MUB?: In the year to Sep 21, 2026, with distributions reinvested, IBIT returned −31.1% and MUB returned −0.3%, so MUB returned more.
Which is cheaper, IBIT or MUB?: IBIT charges 0.25% 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.

IBIT against MUB, ETFIQ, data as of Sep 21, 2026. Every figure is calculated from a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, IBIT against MUB, data as of Sep 21, 2026. https://etfiq.com/compare/any/ibit-vs-mub Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources