MFSMvsJMSTETF Comparison
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MFS Active Intermediate Muni Bond ETF (MFSM) and JPMorgan Ultra-Short Municipal Income ETF (JMST) belong to the same industry segment: Municipal Bonds. MFSM's top 1 sector exposures are Municipal. In contrast, JMST's top sector exposures are Municipal and Sovereign. MFSM is more expensive with a Total Expense Ratio (TER) of 0.34%, versus 0.18% for JMST. MFSM is down -0.57% year-to-date (YTD) with +$73M in YTD flows. JMST performs better with 1.8% YTD performance, and +$1.84B in YTD flows. Run a side-by-side ETF comparison of MFSM and JMST 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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MFSM vs JMST performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/23/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MFSM JMST | +1.69%+0.63% | -1.09%+0.64% | -0.57%+1.80% | -0.09%+2.37% | n/a+10.15% | n/a+12.73% |
| Flows | MFSM JMST | +$18M+$618M | +$24M+$1.11B | +$73M+$1.84B | +$75M+$3.09B | -+$5.73B | -+$5.99B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MFSM JMST | +5.38%+0.77% | +3.32%+0.48% | n/a+0.44% | n/a+0.46% |
| Max drawdown | MFSM JMST | -5.93%-0.60% | -6.71%-0.60% | n/a-0.60% | n/a-0.92% |
| Max drawdown duration | MFSM JMST | 71d45d | 109d45d | n/a45d | n/a337d |
Trading data
MFSM | JMST | |
Last sale 10/23/2026 at 1:30 PM | $24.20 | |
| Previous close 10/23/2026 | $24.19 | |
| Consolidated volume 10/23/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 10/23/2026 at 1:30 PM
Live
Closed
MFSM | JMST | |
|---|---|---|
| Last price | $24.20 | – |
| 1D performance | +0.04% | – |
| AuM | $122.17 M | $8.22 B |
| E/R | 0.34% | 0.18% |
Characteristics
MFSM | JMST | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | MFS | J.P. Morgan Asset Management |
| Benchmark | - | - |
| N° of holdings | 101 | 483 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | December 4, 2024 | October 16, 2018 |
| ESG | No | No |
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Exposure
Countries
MFSM
USA
25.81%
Other
74.19%
JMST
USA
25.31%
Other
74.69%
Sectors
MFSM
Municipal
25.81%
Other
74.19%
JMST
Municipal
24.23%
Other
75.77%
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Diversification
MFSM
Total weight of top 15 holdings out of 15
9.44%
JMST
Total weight of top 15 holdings out of 15
11.08%
Top 15 holdings
Data as of August 31, 2026
MFSM
US60416UV512
0.91%
Oklahoma Public Property Authority, 5% 1jun2034, USD (2026)
0.80%
Missouri Health and Educational Facilities Authority, 5% 1apr2036, USD (2026A)
0.80%
California Community Choice Financing Authority, 5% 1dec2055, USD (2025C)
0.70%
US763056DQ86
0.68%
US702538FE43
0.68%
US95235TAW36
0.66%
US10623ADK60
0.54%
Paulding Hospital Authority, 5% 1apr2036, USD
0.53%
US49121DAB82
0.53%
St. Tammany Parish Hospital Service District №1, 5% 1jul2056, USD (2026A)
0.52%
St. Cloud, 5% 1may2036, USD (2026)
0.52%
Austin, 5% 15nov2034, USD (2026B)
0.52%
US75989FAM59
0.52%
US897579CQ99
0.52%
JMST
USA, Bills 0% 10sep2026, USD (182D)
1.08%
US64972GZB30
0.97%
US93974FDR10
0.85%
US01170PBW59
0.80%
US60412A2K82
0.74%
US424092HZ03
0.71%
US644894QC44
0.68%
US6492284K61
0.68%
US57421CHW73
0.67%
US9788624C19
0.67%
US650860AZ26
0.66%
US543077YT22
0.66%
US083773EE76
0.64%
US87638TEH23
0.64%
District of Columbia, FRN 1jun2051, USD (2026C)
0.63%
Frequently asked questions about MFSM and JMST
How have the MFSM and JMST ETFs performed in 2026?
As of October 23, 2026, MFSM is down -0.57% year-to-date (YTD), while JMST has returned 1.8%. That puts JMST better performer ahead so far this year.
Which ETF is attracting more investor money: MFSM or JMST?
Year-to-date, the MFSM ETF saw +$73M in flows, compared to +$1.84B for JMST.
Which ETF is more volatile: MFSM or JMST?
Over the past year, MFSM had a volatility of 3.32%, while JMST experienced 0.48%.
Which ETF is bigger: MFSM or JMST?
As of October 23, 2026, MFSM holds $122.17 M in assets under management (AUM), while JMST manages $8.22 B.
What sectors do the MFSM and JMST ETFs invest in?
MFSM leans toward sectors like Municipal. Meanwhile, JMST focuses on Municipal.
What are the top holdings of the MFSM ETF and JMST ETF?
MFSM top holdings include US60416UV512, Oklahoma Public Property Authority, 5% 1jun2034, USD (2026) and Missouri Health and Educational Facilities Authority, 5% 1apr2036, USD (2026A). JMST holds in its top three: USA, Bills 0% 10sep2026, USD (182D), US64972GZB30 and US93974FDR10.
Which ETF is more diversified: MFSM or JMST?
MFSM holds 418 securities with 9.44% of its assets in the top 15. JMST has 1542 securities and a top 15 weight of 11.08%.
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Latest news about MFSM & JMST
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