JMST vs SUB: Differences, Returns & Fees

On May 31, 2026 JMST's duration was 0.9 years and SUB's 1.8; SUB charges 0.07% to JMST's 0.18%. Net assets on Oct 9, 2026: $7.9bn for JPMorgan Ultra-Short Municipal Income ETF and $12.3bn for iShares Short-Term National Muni Bond ETF.

SUB costs 0.11 points a year less; their one-year returns differ by 1.1 points; SUB is 1.6 times larger.

JMSTSUB
Expense ratio0.18%0.07%
Net assets$7.9bn$12.3bn
Total return, 1 year+1.9%+0.8%
What it tracksNo index, actively managedICE Short Maturity AMT-Free US National Municipal Index
Holdings in common3%

Holdings in common uses holdings dated May 31, 2026.

+1.9%
JMST total return, 1 year
+0.8%
SUB total return, 1 year
0.18%
JMST expense ratio
0.07%
SUB expense ratio

What they hold in common

By the books each fund has filed, JMST and SUB hold 3% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated May 31, 2026.

half

3% in common

Positions both hold, largest shared weight first
Holding JMST SUB
City of Houston, Combined Utility System, First Lien, Series 2018C, due May 15, 2034 0.63% 0.21%
State of Illinois, Series 2017D, due Nov 1, 2026 0.31% 0.16%
City of New York, Fiscal Year 2026, Series 2026B, Subseries B-1, due Aug 1, 2030 0.11% 0.21%
Pennsylvania Turnpike Commission, Series 2020, due Dec 1, 2039 0.60% 0.07%
State of New Mexico Severance Tax Permanent Fund, Series 2022A, due Jul 1, 2026 0.07% 0.13%
State of Illinois, Series 2017D, due Nov 1, 2028 0.06% 0.12%
State of Illinois, Series 2017C, due Nov 1, 2029 0.06% 0.15%
New York City Transitional Finance Authority Future Tax Secured Fiscal Year 2026, Series 2026, Subseries D-1, due Nov 1, 2030 0.06% 0.21%
Curators of the University of Missouri (The), Series 2024, due Nov 1, 2026 0.06% 0.06%
State of Connecticut, Series 2026B, due Sep 15, 2031 0.13% 0.05%
County of Clark, Limited Tax, Series 2016B, due Nov 1, 2027 0.05% 0.13%
New York State Dormitory Authority, School Districts Financing Program, Series 2026A, due Oct 1, 2029 0.13% 0.05%
Only in JMST
New York City Municipal Water Finance Authority, Water and Sewer System, Second General Resolution, Fiscal year 2021, Series 2021, Subseries EE2, due Jun 15, 2045 1.02%
State of Washington, Various Purpose, Series R-2026A, due Jul 1, 2029 0.90%
Alaska Housing Finance Corp., Home Mortgage, Series 2007A, due Dec 1, 2041 0.86%
State of Minnesota, Various Purpose, Series 2025D, due Aug 1, 2027 0.78%
Township of Woodbridge, due Oct 9, 2026 0.71%
Maryland Health and Higher Educational Facilities Authority, University of Maryland Medical System, Series 2025C-1, due Jul 1, 2055 0.71%
Bergen County Improvement Authority (The), Guaranteed Government Pooled Project, Series 2026A, due May 19, 2027 0.68%
Tarrant County Cultural Education Facilities Finance Corp., Texas Health Resources System, Series 2012B, due Nov 15, 2047 0.67%
Only in SUB
County of King, Series 2024, due Jan 1, 2042 0.35%
San Antonio Water System, Series 2025D, due May 1, 2055 0.28%
City of Seattle, Series 2023B, due Nov 1, 2046 0.27%
State of California, due Aug 1, 2029 0.27%
Empire State Development Corp., Series 2022A, due Sep 15, 2028 0.25%
Pennsylvania Turnpike Commission, Series 2023B, due Dec 1, 2043 0.25%
University of California, Series 2025CD, due May 15, 2030 0.25%
New Jersey Turnpike Authority, Series 2025B, due Jan 1, 2030 0.25%

Check overlap with more funds →

On the same fields

JMST
JPMorgan Ultra-Short Municipal Income ETF
SUB
iShares Short-Term National Muni Bond ETF
Where it sits Bond ETF Bond ETF
What it is Actively managed Tracks an index
Total return, 1 year +1.9% +0.8%
S&P 500 over the same days +17.3% +17.3%
Gap to the S&P 500 −15.3 pts −16.4 pts
Expense ratio 0.18% 0.07%
Holdings 1851 3057
Net assets $7.9bn $12.3bn

JMST and SUB on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.

JMST in plain words

JMST is actively managed and tracks no index. Over the year to Oct 9, 2026 it returned +1.9% with distributions reinvested. The prospectus expense ratio is 0.18% a year.

SUB in plain words

SUB tracks an index. Over the year to Oct 9, 2026 it returned +0.8% with distributions reinvested. The prospectus expense ratio is 0.07% a year.

Questions people ask

Which returned more over the last year, JMST or SUB?
In the year to Oct 9, 2026, with distributions reinvested, JMST returned +1.9% and SUB +0.8%.
Which is cheaper, JMST or SUB?
SUB is cheaper, by 0.11 percentage points a year. That is about $11 on $10,000 held for a year. Fees come from each fund's prospectus.
Cite this pageCitation, APA and Markdown

ETFIQ, JMST against SUB, data as of Oct 9, 2026. https://etfiq.com/compare/any/jmst-vs-sub

Open data

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