CATFvsMYMKETF Comparison
VS
American Century California Municipal Bond ETF (CATF) and State Street SPDR My2031 Municipal Bond ETF (MYMK) belong to the same industry segment: Municipal Bonds. Both ETFs have the same top 1 sector exposures: Municipal. CATF is more expensive with a Total Expense Ratio (TER) of 0.25%, versus 0.2% for MYMK. CATF is down -0.06% year-to-date (YTD) with +$25M in YTD flows. MYMK performs better with 0.06% YTD performance, and +$6M in YTD flows. Run a side-by-side ETF comparison of CATF and MYMK 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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CATF vs MYMK performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/01/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | CATF MYMK | -0.64%-0.16% | -1.59%-0.69% | -0.06%+0.06% | +4.40%n/a | n/an/a | n/an/a |
| Flows | CATF MYMK | +$2M- | +$7M+$1M | +$25M+$6M | +$33M- | -- | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | CATF MYMK | +2.67%+1.44% | +2.53%n/a | n/an/a | n/an/a |
| Max drawdown | CATF MYMK | -2.39%-1.13% | -2.58%n/a | n/an/a | n/an/a |
| Max drawdown duration | CATF MYMK | 57d58d | 116dn/a | n/an/a | n/an/a |
Trading data
CATF | MYMK | |
Last sale 9/3/2026 at 4:29 PM | $49.16 | $24.66 |
| Previous close 09/02/2026 | $48.98 | $24.68 |
| Consolidated volume 09/02/2026 | ||
| 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 4:29 PM
Live
Closed
CATF | MYMK | |
|---|---|---|
| Last price | $49.16 | $24.66 |
| 1D performance | +0.37% | -0.06% |
| AuM | $83.15 M | $11.10 M |
| E/R | 0.25% | 0.2% |
Characteristics
CATF | MYMK | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | American Century Investments | State Street Investment Management |
| Benchmark | - | - |
| N° of holdings | 107 | 41 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | July 18, 2024 | September 17, 2025 |
| ESG | No | No |
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Exposure
Countries
CATF
USA
39.99%
Other
60.01%
MYMK
USA
39.57%
Other
60.43%
Sectors
CATF
Municipal
39.99%
Other
60.01%
MYMK
Municipal
39.57%
Other
60.43%
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Diversification
CATF
Total weight of top 15 holdings out of 15
12.56%
MYMK
Total weight of top 15 holdings out of 15
41.5%
Top 15 holdings
Data as of July 31, 2026
CATF
California, 3.5% 1dec2030, USD
1.46%
Riverside Transportation Commission, 4% 1jun2046, USD
0.95%
California, 4% 1sep2043, USD
0.90%
US684133KT71
0.90%
US13032UN611
0.88%
East AWP Joint Powers Authority, 3.125% 1sep2026, USD (2024A)
0.85%
Puerto Rico Sales Tax Financing Corp., 4.329% 1jul2040, USD
0.84%
California Community Choice Financing Authority, 5.25% 1feb2036, USD (2026C)
0.79%
US13048VV394
0.75%
US13032UX453
0.73%
California Community Choice Financing Authority, 5% 1aug2055, USD (2024C)
0.73%
Desert Community College District, 5% 1aug2051, USD (2016)
0.71%
US544647JV34
0.69%
California Public Works Board, 5% 1sep2033, USD (2024)
0.69%
California Community Choice Financing Authority, 5% 1oct2034, USD (2026G)
0.69%
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%
Frequently asked questions about CATF and MYMK
How have the CATF and MYMK ETFs performed in 2026?
As of September 1, 2026, CATF is down -0.06% year-to-date (YTD), while MYMK has returned 0.06%. That puts MYMK better performer ahead so far this year.
Which ETF is attracting more investor money: CATF or MYMK?
Year-to-date, the CATF ETF saw +$25M in flows, compared to +$6M for MYMK.
Which ETF is bigger: CATF or MYMK?
As of September 1, 2026, CATF holds $83.15 M in assets under management (AUM), while MYMK manages $11.10 M.
What sectors do the CATF and MYMK ETFs invest in?
CATF leans toward sectors like Municipal. Meanwhile, MYMK focuses on Municipal.
What are the top holdings of the CATF ETF and MYMK ETF?
CATF top holdings include California, 3.5% 1dec2030, USD, Riverside Transportation Commission, 4% 1jun2046, USD and California, 4% 1sep2043, USD. MYMK holds in its top three: County of Harris, 5% 15aug2031, USD (2018A), US915260FC21 and US13068XBJ72.
Which ETF is more diversified: CATF or MYMK?
CATF holds 303 securities with 12.56% of its assets in the top 15. MYMK has 83 securities and a top 15 weight of 41.5%.
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