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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

BIL vs MUB: how they differ

BIL is a short-term Treasury fund and MUB a bond index fund, and over the year BIL returned more, +3.7% against +0.1%.

SPDR Bloomberg 1-3 Month T-Bill ETF and iShares National Muni Bond ETF.

BIL and MUB on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
BIL
SPDR Bloomberg 1-3 Month T-Bill ETF
MUB
iShares National Muni Bond ETF
Where it sitsCore index fundCore index fund
IssuerState StreetiShares
What it is1-3 month T-billsNational Muni Bond
Total return, 1 year+3.7%+0.1%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−13.8 pts−17.4 pts
Expense ratio0.14%0.05%
Holdingsnot filed6603

BIL in plain words

BIL is a cash and treasury bills tracking the 1-3 month T-bills. Over the year to Sep 11, 2026 it returned +3.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.14% a year.

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, BIL or MUB?
In the year to Sep 12, 2026, with distributions reinvested, BIL returned +3.7% and MUB returned +0.1%, so BIL returned more. One year is one year; the longer windows are in the table.
Which is cheaper, BIL or MUB?
BIL charges 0.14% 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.

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

A comparison is not a recommendation. Standards and sources