JMSTvsMFSMETF Comparison
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JPMorgan Ultra-Short Municipal Income ETF (JMST) and MFS Active Intermediate Muni Bond ETF (MFSM) belong to the same industry segment: Municipal Bonds. JMST's top 2 sector exposures are Municipal and Sovereign. In contrast, MFSM's top sector exposures are Municipal. JMST is less expensive with a Total Expense Ratio (TER) of 0.18%, versus 0.34% for MFSM. JMST is up 1.36% year-to-date (YTD) with +$1.07B in YTD flows. MFSM performs worse with -1.14% YTD performance, and +$53M in YTD flows. Run a side-by-side ETF comparison of JMST and MFSM below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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JMST vs MFSM performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/10/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | JMST MFSM | -0.02%-2.52% | +0.31%-2.93% | +1.36%-1.14% | +2.03%+0.85% | +9.77%n/a | +12.17%n/a |
| Flows | JMST MFSM | +$297M+$2M | +$933M+$7M | +$1.07B+$53M | +$2.82B+$57M | +$4.88B- | +$5.32B- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | JMST MFSM | +0.40%+2.94% | +0.34%+2.33% | +0.41%n/a | +0.43%n/a |
| Max drawdown | JMST MFSM | -0.16%-3.53% | -0.16%-3.53% | -0.46%n/a | -0.93%n/a |
| Max drawdown duration | JMST MFSM | 10d66d | 10d66d | 29dn/a | 435dn/a |
Trading data
JMST | MFSM | |
Last sale 9/10/2026 at 1:30 PM | $24.14 | |
| Previous close 09/10/2026 | $24.32 | |
| Consolidated volume 09/10/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 9/10/2026 at 1:30 PM
Live
Closed
JMST | MFSM | |
|---|---|---|
| Last price | – | $24.14 |
| 1D performance | – | -0.74% |
| AuM | $7.43 B | $101.93 M |
| E/R | 0.18% | 0.34% |
Characteristics
JMST | MFSM | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | J.P. Morgan Asset Management | MFS |
| Benchmark | - | - |
| N° of holdings | 523 | 103 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 16, 2018 | December 4, 2024 |
| ESG | No | No |
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Exposure
Countries
JMST
USA
27.09%
Other
72.91%
MFSM
USA
27.33%
Other
72.67%
Sectors
JMST
Municipal
24.94%
Other
75.06%
MFSM
Municipal
27.33%
Other
72.67%
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Diversification
JMST
Total weight of top 15 holdings out of 15
12.23%
MFSM
Total weight of top 15 holdings out of 15
10.5%
Top 15 holdings
Data as of July 31, 2026
JMST
USA, Bills 0% 11aug2026, USD (119D)
2.16%
US64972GZB30
0.98%
US93974FDR10
0.85%
US01170PBW59
0.81%
US60412A2K82
0.74%
US424092HZ03
0.71%
US644894QC44
0.68%
US6492284K61
0.68%
US9788624C19
0.68%
US57421CHW73
0.68%
US650860AZ26
0.67%
US543077YT22
0.67%
US083773EE76
0.65%
US87638TEH23
0.64%
District of Columbia, FRN 1jun2051, USD (2026C)
0.64%
MFSM
US49126RAC07
1.00%
US60416UV512
0.94%
Oklahoma Public Property Authority, 5% 1jun2034, USD (2026)
0.83%
Missouri Health and Educational Facilities Authority, 5% 1apr2036, USD (2026A)
0.83%
US708692CB22
0.75%
California Community Choice Financing Authority, 5% 1dec2055, USD (2025C)
0.72%
US763056DQ86
0.72%
US702538FE43
0.71%
US95235TAW36
0.69%
Paulding Hospital Authority, 5% 1apr2036, USD
0.55%
St. Cloud, 5% 1may2036, USD (2026)
0.55%
US164555EB63
0.55%
US49121DAB82
0.55%
US75989FAM59
0.55%
St. Tammany Parish Hospital Service District №1, 5% 1jul2056, USD (2026A)
0.55%
Frequently asked questions about JMST and MFSM
How have the JMST and MFSM ETFs performed in 2026?
As of September 10, 2026, JMST is up 1.36% year-to-date (YTD), while MFSM has lost -1.14%. That puts JMST better performer ahead so far this year.
Which ETF is attracting more investor money: JMST or MFSM?
Year-to-date, the JMST ETF saw +$1.07B in flows, compared to +$53M for MFSM.
Which ETF is more volatile: JMST or MFSM?
Over the past year, JMST had a volatility of 0.34%, while MFSM experienced 2.33%.
Which ETF is bigger: JMST or MFSM?
As of September 10, 2026, JMST holds $7.43 B in assets under management (AUM), while MFSM manages $101.93 M.
What sectors do the JMST and MFSM ETFs invest in?
JMST leans toward sectors like Municipal. Meanwhile, MFSM focuses on Municipal.
What are the top holdings of the JMST ETF and MFSM ETF?
JMST top holdings include USA, Bills 0% 11aug2026, USD (119D), US64972GZB30 and US93974FDR10. MFSM holds in its top three: US49126RAC07, US60416UV512 and Oklahoma Public Property Authority, 5% 1jun2034, USD (2026).
Which ETF is more diversified: JMST or MFSM?
JMST holds 1623 securities with 12.23% of its assets in the top 15. MFSM has 409 securities and a top 15 weight of 10.5%.
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Latest news about JMST & MFSM
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