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.
| JMST | SUB | |
|---|---|---|
| Expense ratio | 0.18% | 0.07% |
| Net assets | $7.9bn | $12.3bn |
| Total return, 1 year | +1.9% | +0.8% |
| What it tracks | No index, actively managed | ICE Short Maturity AMT-Free US National Municipal Index |
| Holdings in common | 3% | |
Holdings in common uses holdings dated May 31, 2026.
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
On the same fields
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.
ETFIQ links to the documents behind every figure; a link is not an endorsement. 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, JMST against SUB, data as of Oct 9, 2026. https://etfiq.com/compare/any/jmst-vs-sub
ETFIQ. (Oct 9, 2026). JMST against SUB. Retrieved from https://etfiq.com/compare/any/jmst-vs-sub
[JMST against SUB (ETFIQ, Oct 9, 2026)](https://etfiq.com/compare/any/jmst-vs-sub)
Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.