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Data as of Oct 28, 2026.

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IGSB vs MUB: Differences, Returns & Fees

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On Aug 31, 2026 IGSB's duration was 2.7 years and MUB's 7.0; IGSB charges 0.04% to MUB's 0.05%.

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Net assets: $23.7bn on Oct 28, 2026 for iShares 1-5 Year Investment Grade Corporate Bond ETF, and $54.1bn on Oct 27, 2026 for iShares National Muni Bond ETF.

IGSB on its own →MUB on its own →
At a glance
+1.3%
IGSB total return, 1 year
−0.4%
MUB total return, 1 year
0.04%
IGSB expense ratio
0.05%
MUB expense ratio

Pair scorecard

IGSB costs 0.01 points a year less; their one-year returns differ by 1.7 points; MUB is 2.3 times larger.

IGSB vs MUB: Differences, Returns & Fees
MeasureIGSBMUB
Return
Total return, 1 year+1.3%−0.4%
Benchmark
What it tracksICE BofA 1-5 Year US Corporate IndexICE AMT-Free US National Municipal Index
Cost and size
Expense ratio0.04%0.05%
Net assets, as of Oct 26, 2026$23.7bn$54.1bn
Holdings
Holdings in common0%

Holdings in common uses holdings dated Aug 31, 2026. Method

What they share

0%

By the books each fund has filed, IGSB and MUB hold 0% of their money in the same securities at the same weight. Holdings dated Aug 31, 2026.

0 half 100%

half

0% in common

Positions both hold · largest shared weight first IGSB MUB
Only in one fund ↓
Only in IGSB
Eagle Funding Luxco Sarl, due Aug 17, 2030 0.29%
T-Mobile USA Inc, due Apr 15, 2030 0.17%
Space Exploration Technologies Corp, due Jul 15, 2031 0.15%
Bank of America Corp, due Dec 20, 2028 0.14%
Amazon.com Inc, due Mar 13, 2031 0.13%
AbbVie Inc, due Nov 21, 2029 0.13%
Mars Inc, due Mar 1, 2030 0.12%
CVS Health Corp, due Mar 25, 2028 0.12%
Only in MUB
Board of Regents of the University of Texas System, Series 2025B, due Aug 15, 2036 0.18%
San Antonio Water System, Series 2025D, due May 1, 2055 0.15%
New York State Thruway Authority, Series 2022A, due Mar 15, 2048 0.15%
New York State Dormitory Authority, Series 2019D, due Feb 15, 2047 0.13%
Northwest Independent School District, Series 2025, due Feb 15, 2055 0.12%
Houston Higher Education Finance Corp., Series 2024, due May 15, 2034 0.12%
State of New Jersey, Series 2020A, due Jun 1, 2028 0.12%
Ohio State University (The), Series 2026A, due Jun 1, 2035 0.12%
Check overlap with more funds →

Side by side

IGSB iShares 1-5 Year Investment Grade Corporate Bond ETF MUB iShares National Muni Bond ETF
Where it sits Bond ETF Bond ETF
Issuer iShares iShares
What it is Tracks an index of 1-5 Year Investment Grade Corporate Bond Tracks an index of National Muni Bond
Total return, 1 year +1.3% −0.4%
Expense ratio 0.04% 0.05%
Holdings 4781 7873
Net assets, IGSB as of Oct 28, 2026 and MUB as of Oct 27, 2026 $23.7bn $54.1bn

IGSB and MUB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
IGSB

IGSB tracks an index of 1-5 Year Investment Grade Corporate Bond. Over the year to Oct 28, 2026 it returned +1.3% with distributions reinvested. The prospectus expense ratio is 0.04% a year.

MUB

MUB tracks an index of National Muni Bond. Over the year to Oct 28, 2026 it returned −0.4% with distributions reinvested. The prospectus expense ratio is 0.05% a year.

Questions people ask

Which returned more over the last year, IGSB or MUB?
In the year to Oct 28, 2026, with distributions reinvested, IGSB returned +1.3% and MUB −0.4%.
Which is cheaper, IGSB or MUB?
IGSB is cheaper, by 0.01 percentage points a year. That is about $1 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
IGSB vs VTEBHYMB vs IGSBIGSB vs MINTIGSB vs TIPMUB vs SPSBMUB vs VCSHBSV vs MUBJAAA vs MUB
Where to next
IGSB on its own →MUB on its own →Hold both: look the portfolio through →Rankings →IGSB dividend history →IGSB holdings →MUB dividend history →MUB holdings →Standards and sources →
Sources and dates
IGSB and MUB filings on SEC EDGAR ↗
IGSB and MUB prospectus with the expense ratio (SEC) ↗
iShares page for IGSB ↗
iShares page for MUB ↗

Links are sources, not endorsements. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, IGSB against MUB, data as of Oct 28, 2026. https://etfiq.com/compare/any/igsb-vs-mub

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.