MYMKvsTAFIETF Comparison
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State Street SPDR My2031 Municipal Bond ETF (MYMK) and AB Tax-Aware Short Duration Municipal ETF (TAFI) belong to the same industry segment: Municipal Bonds. MYMK's top 1 sector exposures are Municipal. In contrast, TAFI's top sector exposures are Municipal, Industrials and Consumer Non-Cyclicals. MYMK is less expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.27% for TAFI. MYMK is up 0.08% year-to-date (YTD) with +$6M in YTD flows. TAFI performs better with 1.11% YTD performance, and +$321M in YTD flows. Run a side-by-side ETF comparison of MYMK and TAFI 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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MYMK vs TAFI performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/03/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MYMK TAFI | -0.13%+0.09% | -0.66%-0.02% | +0.08%+1.11% | n/a+2.28% | n/a+10.94% | n/an/a |
| Flows | MYMK TAFI | -+$13M | +$1M+$125M | +$6M+$321M | -+$525M | -+$1.20B | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MYMK TAFI | +1.45%+0.93% | n/a+0.96% | n/a+1.40% | n/an/a |
| Max drawdown | MYMK TAFI | -1.13%-0.60% | n/a-1.17% | n/a-1.71% | n/an/a |
| Max drawdown duration | MYMK TAFI | 59d58d | n/a116d | n/a59d | n/an/a |
Trading data
MYMK | TAFI | |
Last sale 9/3/2026 at 1:30 PM | $24.67 | $24.96 |
| Previous close 09/03/2026 | $24.66 | $24.98 |
| Consolidated volume 09/03/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 9/3/2026 at 1:30 PM
Live
Closed
MYMK | TAFI | |
|---|---|---|
| Last price | $24.67 | $24.96 |
| 1D performance | +0.04% | -0.08% |
| AuM | $11.10 M | $1.37 B |
| E/R | 0.2% | 0.27% |
Characteristics
MYMK | TAFI | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | State Street Investment Management | AllianceBernstein |
| Benchmark | - | - |
| N° of holdings | 41 | 244 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | September 17, 2025 | September 13, 2022 |
| ESG | No | No |
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Exposure
Countries
MYMK
USA
39.57%
Other
60.43%
TAFI
USA
39.87%
Other
60.13%
Sectors
MYMK
Municipal
39.57%
Other
60.43%
TAFI
Municipal
39.34%
Other
60.66%
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Diversification
MYMK
Total weight of top 15 holdings out of 15
41.5%
TAFI
Total weight of top 15 holdings out of 15
12.69%
Top 15 holdings
Data as of July 31, 2026
MYMK
County of Harris, 5% 15aug2031, USD (2018A)
3.69%
US915260FC21
3.63%
US13068XBJ72
3.51%
US544532DF87
3.27%
US166394FB70
2.93%
US45528US858
2.88%
US80189RFG56
2.77%
US61334PFP36
2.66%
US4787182E83
2.56%
Connecticut, 5% 1may2041, USD
2.49%
Alabama Public School and College Authority, 5% 1nov2034, USD (2020-A)
2.44%
US54641CAM73
2.23%
US2077583E11
2.20%
State of Ohio, 5% 15jun2034, USD (2021A)
2.13%
US426362NK18
2.11%
TAFI
Pennsylvania Economic Development Financing Authority, FRN 15may2053, USD
1.52%
US040507QB45
1.40%
US7485082P22
1.16%
City of New York, 5% 1feb2032, USD (2026)
1.04%
Colorado Health Facilities Authority, 5% 1sep2032, USD (2025A)
0.82%
Illinois Finance Authority, FRN 15nov2037, USD (2018)
0.76%
Revere, 4% 29jul2027, USD
0.74%
Miami-Dade School District, 4% 7jan2027, USD (2026)
0.74%
US574193XM57
0.73%
US09182TKL07
0.73%
New York Transitional Finance Authority, 5% 1nov2030, USD (2026)
0.71%
US544657JD25
0.67%
Orchard Park Central School District, 4% 30apr2027, USD (2026)
0.57%
US67756CGX02
0.56%
City of Los Angeles, 5% 24jun2027, USD (2026)
0.52%
Frequently asked questions about MYMK and TAFI
How have the MYMK and TAFI ETFs performed in 2026?
As of September 3, 2026, MYMK is up 0.08% year-to-date (YTD), while TAFI has returned 1.11%. That puts TAFI better performer ahead so far this year.
Which ETF is attracting more investor money: MYMK or TAFI?
Year-to-date, the MYMK ETF saw +$6M in flows, compared to +$321M for TAFI.
Which ETF is bigger: MYMK or TAFI?
As of September 3, 2026, MYMK holds $11.10 M in assets under management (AUM), while TAFI manages $1.37 B.
What sectors do the MYMK and TAFI ETFs invest in?
MYMK leans toward sectors like Municipal. Meanwhile, TAFI focuses on Municipal.
What are the top holdings of the MYMK ETF and TAFI ETF?
MYMK top holdings include County of Harris, 5% 15aug2031, USD (2018A), US915260FC21 and US13068XBJ72. TAFI holds in its top three: Pennsylvania Economic Development Financing Authority, FRN 15may2053, USD, US040507QB45 and US7485082P22.
Which ETF is more diversified: MYMK or TAFI?
MYMK holds 83 securities with 41.5% of its assets in the top 15. TAFI has 691 securities and a top 15 weight of 12.69%.
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