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

In the year to Sep 13, 2026, with distributions reinvested, MDY returned +13.0% and MUB returned +0.1%, so MDY returned more. One year is one year; the longer windows are in the table.

Which is cheaper, MDY or MUB?

MDY charges 0.23% a year and MUB charges 0.05%, so MUB is cheaper. Fees come from each fund's prospectus.

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

ETFIQetfiq.com · independent ETF data

MDY vs MUB: how they differ

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

SPDR S&P MidCap 400 ETF Trust and iShares National Muni Bond ETF.

What they hold in common

By the books each fund has filed, MDY 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 MDY	Only in MUB
Twilio Inc. Class A 1.00%	HOUSTON TEX HIGHER ED FIN CORP 0.13%
Illumina Inc. 0.86%	DISTRICT COLUMBIA UNIV REV 0.10%
TechnipFMC plc 0.86%	ECTOR CNTY TEX 0.08%
Everpure Inc. Class A 0.84%	NEW ORLEANS LA 0.08%
Okta Inc. Class A 0.81%	PORT TACOMA WASH REV 0.08%
U.S. Dollar 0.80%	CONTRA COSTA CALIF CMNTY COLLE 0.06%
ATI Inc 0.77%	LOS ANGELES CALIF 0.06%
nVent Electric plc 0.71%	LOS ANGELES CNTY CALIF 0.06%

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 10, 2026.

MDY and MUB on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
	MDY SPDR S&P MidCap 400 ETF Trust	MUB iShares National Muni Bond ETF
Where it sits	Core index fund	Core index fund
Issuer	State Street	iShares
What it is	S&P MidCap 400	National Muni Bond
Total return, 1 year	+13.0%	+0.1%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−4.5 pts	−17.4 pts
Expense ratio	0.23%	0.05%
Holdings	401	5215

MDY in plain words

MDY is an index equity fund tracking the S&P MidCap 400. Over the year to Sep 11, 2026 it returned +13.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.23% a year. By its holdings filed for Sep 10, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 401 positions, with the top ten at 7.9%. It sat 5.3% below its high of Aug 14, 2026 on Sep 11, 2026.

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, MDY or MUB?: In the year to Sep 13, 2026, with distributions reinvested, MDY returned +13.0% and MUB returned +0.1%, so MDY returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MDY or MUB?: MDY charges 0.23% 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.

MDY against MUB, 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, MDY against MUB, data as of Sep 13, 2026. https://etfiq.com/compare/any/mdy-vs-mub Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources