MYMKvsGNMAETF Comparison
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State Street SPDR My2031 Municipal Bond ETF (MYMK) belongs to the Municipal Bonds segment. iShares GNMA Bond ETF (GNMA) is part of the MBS & ABS segment. MYMK's top 1 sector exposures are Municipal. In contrast, GNMA's top sector exposures are Industrials and Non-Corporate. MYMK is more expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.11% for GNMA. MYMK is down -0.73% year-to-date (YTD) with +$6M in YTD flows. GNMA performs worse with -1.65% YTD performance, and +$36M in YTD flows. Run a side-by-side ETF comparison of MYMK and GNMA 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 GNMA performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MYMK GNMA | +0.08%-0.41% | -1.43%-2.53% | -0.73%-1.65% | -0.08%-1.41% | n/a+15.95% | n/a+0.31% |
| Flows | MYMK GNMA | --$15M | -+$7M | +$6M+$36M | +$6M+$69M | -+$124M | --$12M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MYMK GNMA | +2.99%+5.77% | +1.95%+4.49% | n/a+5.59% | n/a+6.56% |
| Max drawdown | MYMK GNMA | -3.24%-4.45% | -4.17%-5.36% | n/a-5.36% | n/a-15.48% |
| Max drawdown duration | MYMK GNMA | 64d52d | 229d229d | n/a229d | n/a1397d |
Trading data
MYMK | GNMA | |
Last sale 10/19/2026 at 1:30 PM | $24.40 | $42.10 |
| Previous close 10/16/2026 | $24.40 | $42.27 |
| Consolidated volume 10/16/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of September 30, 2026
1-year trailing difference
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MYMK
is actively managed and doesn’t replicate an indexMYMK | GNMA | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/19/2026 at 1:30 PM
Live
Closed
MYMK | GNMA | |
|---|---|---|
| Last price | $24.40 | $42.10 |
| 1D performance | +0.00% | -0.41% |
| AuM | $10.99 M | $416.20 M |
| E/R | 0.2% | 0.11% |
Characteristics
MYMK | GNMA | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | State Street Investment Management | iShares |
| Benchmark | - | Bloomberg U.S. GNMA Bond Index |
| N° of holdings | 41 | 109 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | September 17, 2025 | February 14, 2012 |
| ESG | No | No |
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Exposure
Countries
MYMK
USA
39.6%
Other
60.4%
GNMA
USA
48.8%
Other
51.2%
Sectors
MYMK
Municipal
39.6%
Other
60.4%
GNMA
Industrials
39.92%
Non-Corporate
8.88%
Other
51.2%
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Diversification
MYMK
Total weight of top 15 holdings out of 15
41.46%
GNMA
Total weight of top 15 holdings out of 15
33.91%
Top 15 holdings
Data as of August 31, 2026
MYMK
County of Harris, 5% 15aug2031, USD (2018A)
3.69%
US915260FC21
3.63%
US13068XBJ72
3.50%
US544532DF87
3.25%
US166394FB70
2.93%
US45528US858
2.88%
US80189RFG56
2.78%
US61334PFP36
2.67%
US4787182E83
2.54%
Connecticut, 5% 1may2041, USD
2.47%
Alabama Public School and College Authority, 5% 1nov2034, USD (2020-A)
2.44%
US54641CAM73
2.23%
US2077583E11
2.21%
State of Ohio, 5% 15jun2034, USD (2021A)
2.13%
US426362NK18
2.11%
GNMA
BlackRock Cash Funds - Treasury
8.88%
G2 MA7192, 2% 20feb2051, USD (ABS)
2.59%
US3618N5XQ77
2.51%
G2 MA9360, 4.5% 20dec2053, USD (ABS)
2.42%
US21H0526945
1.97%
US36179WTX64
1.90%
G2 MA8878, 5% 20may2053, USD (ABS)
1.67%
G2 MB0025, 5% 20nov2054, USD (ABS)
1.64%
US36179WJR07
1.62%
G2 MA7880, 2% 20feb2052, USD (ABS)
1.59%
G2 MA8801, 5.5% 20apr2053, USD (ABS)
1.59%
G2 MA6864, 2% 20sep2050, USD (ABS)
1.44%
US36179WLP13
1.40%
US36179WFG87
1.38%
US3617NWEY42
1.32%
Frequently asked questions about MYMK and GNMA
How have the MYMK and GNMA ETFs performed in 2026?
As of October 16, 2026, MYMK is down -0.73% year-to-date (YTD), while GNMA has lost -1.65%. That puts MYMK better performer ahead so far this year.
Which ETF is attracting more investor money: MYMK or GNMA?
Year-to-date, the MYMK ETF saw +$6M in flows, compared to +$36M for GNMA.
Which ETF is more volatile: MYMK or GNMA?
Over the past year, MYMK had a volatility of 1.95%, while GNMA experienced 4.49%.
Which ETF is bigger: MYMK or GNMA?
As of October 16, 2026, MYMK holds $10.99 M in assets under management (AUM), while GNMA manages $416.20 M.
What sectors do the MYMK and GNMA ETFs invest in?
MYMK leans toward sectors like Municipal. Meanwhile, GNMA focuses on Industrials and Non-Corporate.
What are the top holdings of the MYMK ETF and GNMA ETF?
MYMK top holdings include County of Harris, 5% 15aug2031, USD (2018A), US915260FC21 and US13068XBJ72. GNMA holds in its top three: BlackRock Cash Funds - Treasury, G2 MA7192, 2% 20feb2051, USD (ABS) and US3618N5XQ77.
Which ETF is more diversified: MYMK or GNMA?
MYMK holds 84 securities with 41.46% of its assets in the top 15. GNMA has 355 securities and a top 15 weight of 33.91%.
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