MYMIvsMUNXETF Comparison
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State Street SPDR My2029 Municipal Bond ETF (MYMI) and AMG GW&K Muni Income ETF (MUNX) belong to the same industry segment: Municipal Bonds. Both ETFs have the same top 1 sector exposures: Municipal. MYMI is less expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.29% for MUNX. MYMI is up 1.13% year-to-date (YTD) with +$2M in YTD flows. MUNX performs worse with 0.57% YTD performance, and +$10M in YTD flows. Run a side-by-side ETF comparison of MYMI and MUNX 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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MYMI vs MUNX performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 08/31/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MYMI MUNX | +0.30%-0.13% | +0.16%-1.03% | +1.13%+0.57% | +3.08%n/a | n/an/a | n/an/a |
| Flows | MYMI MUNX | +$1M- | +$1M+$2M | +$2M+$10M | +$5M- | -- | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MYMI MUNX | +0.98%+2.74% | +1.08%n/a | n/an/a | n/an/a |
| Max drawdown | MYMI MUNX | -0.74%-1.95% | -1.26%n/a | n/an/a | n/an/a |
| Max drawdown duration | MYMI MUNX | 56d56d | 120dn/a | n/an/a | n/an/a |
Trading data
MYMI | MUNX | |
Last sale 9/1/2026 at 1:30 PM | $24.46 | $24.39 |
| Previous close 08/31/2026 | $24.56 | $24.64 |
| Consolidated volume 08/31/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 9/1/2026 at 1:30 PM
Live
Closed
MYMI | MUNX | |
|---|---|---|
| Last price | $24.46 | $24.39 |
| 1D performance | -0.41% | -1.01% |
| AuM | $14.71 M | $19.66 M |
| E/R | 0.2% | 0.29% |
Characteristics
MYMI | MUNX | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | State Street Investment Management | AMG |
| Benchmark | - | - |
| N° of holdings | 59 | 39 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | September 23, 2024 | October 29, 2025 |
| ESG | No | No |
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Exposure
Countries
MYMI
USA
51.18%
Other
48.82%
MUNX
USA
50.25%
Other
49.75%
Sectors
MYMI
Municipal
51.18%
Other
48.82%
MUNX
Municipal
50.25%
Other
49.75%
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Diversification
MYMI
Total weight of top 15 holdings out of 15
32.91%
MUNX
Total weight of top 15 holdings out of 15
32.67%
Top 15 holdings
Data as of July 31, 2026
MYMI
US97705MT888
3.34%
Alabama Public School and College Authority, 5% 1nov2029, USD (2020-A)
2.37%
US298245MR91
2.37%
US46256QPK66
2.36%
US68607V4W22
2.36%
US050195WC67
2.34%
State of Delaware, 5% 1feb2032, USD (2019A)
2.34%
New York Municipal Water Finance Authority, 5% 15jun2040, USD
2.31%
US181059R735
2.28%
Weld School District №6, 5% 1dec2032, USD
2.01%
West Virginia, 5% 1sep2029, USD
1.82%
Hamilton (OH), 5% 1dec2029, USD (2016A)
1.79%
State of Utah, 5% 1jul2029, USD (2020)
1.76%
US924166KS98
1.74%
US49126PGR55
1.73%
MUNX
Commonwealth Financing Authority, 4% 1jun2039, USD (2018)
3.06%
County of Jefferson (AL), 5.5% 1oct2053, USD (2024)
2.64%
US70868YAL39
2.57%
US03843TBQ31
2.23%
Houston, 5% 1sep2038, USD (2026C)
2.19%
US717823Y444
2.16%
US65889BEL45
2.15%
New York Transportation Development Corp., 6% 30jun2055, USD (2025)
2.13%
US46613SGA24
2.09%
Massachusetts Development Finance Agency, 5.5% 1oct2044, USD (2026A)
2.03%
Texas Private Activity Bond Surface Transportation Corp., 5% 30jun2058, USD (2019)
1.98%
US74448EAA29
1.92%
New York Urban Development Corp., 4% 31oct2034, USD (2021)
1.89%
New York Transportation Development Corp., 5% 1oct2040, USD (2020)
1.81%
US84136HCT86
1.80%
Frequently asked questions about MYMI and MUNX
How have the MYMI and MUNX ETFs performed in 2026?
As of August 31, 2026, MYMI is up 1.13% year-to-date (YTD), while MUNX has returned 0.57%. That puts MYMI better performer ahead so far this year.
Which ETF is attracting more investor money: MYMI or MUNX?
Year-to-date, the MYMI ETF saw +$2M in flows, compared to +$10M for MUNX.
Which ETF is bigger: MYMI or MUNX?
As of August 31, 2026, MYMI holds $14.71 M in assets under management (AUM), while MUNX manages $19.66 M.
What sectors do the MYMI and MUNX ETFs invest in?
MYMI leans toward sectors like Municipal. Meanwhile, MUNX focuses on Municipal.
What are the top holdings of the MYMI ETF and MUNX ETF?
MYMI top holdings include US97705MT888, Alabama Public School and College Authority, 5% 1nov2029, USD (2020-A) and US298245MR91. MUNX holds in its top three: Commonwealth Financing Authority, 4% 1jun2039, USD (2018), County of Jefferson (AL), 5.5% 1oct2053, USD (2024) and US70868YAL39.
Which ETF is more diversified: MYMI or MUNX?
MYMI holds 104 securities with 32.91% of its assets in the top 15. MUNX has 74 securities and a top 15 weight of 32.67%.
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