MYMFvsMBBETF Comparison
VS
State Street SPDR My2026 Municipal Bond ETF (MYMF) belongs to the Municipal Bonds segment. iShares MBS ETF (MBB) is part of the MBS & ABS segment. MYMF's top 1 sector exposures are Municipal. In contrast, MBB's top sector exposures are Industrials, Non-Corporate and Finance. MYMF is more expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.04% for MBB. MYMF is up 1.89% year-to-date (YTD) with -$4M in YTD flows. MBB performs worse with -1.78% YTD performance, and -$1.79B in YTD flows. Run a side-by-side ETF comparison of MYMF and MBB below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
Find out how industry players manage ETF portfolios. Discover our library of Model portfolios
MYMF vs MBB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MYMF MBB | +0.23%-0.25% | +0.45%-2.30% | +1.89%-1.78% | +2.46%-1.43% | n/a+17.04% | n/a-0.38% |
| Flows | MYMF MBB | --$3.31B | --$2.66B | -$4M-$1.79B | -$4M-$5.06B | -+$8.97B | -+$13.89B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MYMF MBB | +0.29%+5.70% | +0.29%+4.61% | n/a+5.73% | n/a+6.66% |
| Max drawdown | MYMF MBB | -0.11%-4.27% | -0.11%-5.38% | n/a-5.38% | n/a-16.94% |
| Max drawdown duration | MYMF MBB | 23d52d | 23d229d | n/a229d | n/a1405d |
Trading data
MYMF | MBB | |
Last sale 10/16/2026 at 7:59 PM | $24.87 | $90.50 |
| Previous close 10/16/2026 | $24.87 | $90.52 |
| 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
Create an account to view replication metrics
Join for free
MYMF
is actively managed and doesn’t replicate an indexMYMF | MBB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
Advertisement
Main metrics
Last update 10/16/2026 at 7:59 PM
Live
Closed
MYMF | MBB | |
|---|---|---|
| Last price | $24.87 | $90.50 |
| 1D performance | +0.02% | -0.02% |
| AuM | $8.71 M | $35.27 B |
| E/R | 0.2% | 0.04% |
Characteristics
MYMF | MBB | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | State Street Investment Management | iShares |
| Benchmark | - | Bloomberg U.S. MBS Index |
| N° of holdings | 16 | 1237 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | September 23, 2024 | March 13, 2007 |
| ESG | No | No |
Advertisement
Exposure
Countries
MYMF
USA
21.12%
Other
78.88%
MBB
USA
28.44%
Other
71.56%
Sectors
MYMF
Municipal
21.12%
Other
78.88%
MBB
Industrials
20.61%
Non-Corporate
7.6%
Other
71.79%
Advertisement
Diversification
MYMF
Total weight of top 15 holdings out of 15
41.96%
MBB
Total weight of top 15 holdings out of 15
16.82%
Top 15 holdings
Data as of August 31, 2026
MYMF
US213185NF46
4.60%
Florida Municipal Power Agency, 5% 1oct2028, USD (2016A)
3.10%
US34440PGE51
2.93%
South Florida Water Management District, 5% 1oct2026, USD (2026)
2.87%
US266705M906
2.69%
US1995078R87
2.59%
US594612FP32
2.59%
US167560YQ84
2.59%
US92818RNY17
2.59%
US956553WQ08
2.59%
US5445876U70
2.59%
US072257X297
2.58%
US455114QY76
2.58%
US45204EHU55
2.57%
US764581KN33
2.52%
MBB
BlackRock Cash Funds - Institutional
7.60%
US01F0526982
1.26%
US21H0526945
1.05%
FR SD8146, 2% 1may2051, USD (ABS)
0.98%
US01F0506927
0.87%
US21H0606978
0.63%
G2 MB0025, 5% 20nov2054, USD (ABS)
0.55%
US21H0506988
0.55%
G2 MA7648, 2% 20oct2051, USD (ABS)
0.51%
US36179WTX64
0.50%
FN MA4492, 2% 1dec2051, USD (ABS)
0.49%
US36179WJR07
0.48%
US21H0426955
0.48%
FR SD8140, 2% 1apr2051, USD (ABS)
0.47%
FN MA4465, 2% 1nov2051, USD (ABS)
0.42%
Frequently asked questions about MYMF and MBB
How have the MYMF and MBB ETFs performed in 2026?
As of October 16, 2026, MYMF is up 1.89% year-to-date (YTD), while MBB has lost -1.78%. That puts MYMF better performer ahead so far this year.
Which ETF is attracting more investor money: MYMF or MBB?
Year-to-date, the MYMF ETF saw -$4M in flows, compared to -$1.79B for MBB.
Which ETF is more volatile: MYMF or MBB?
Over the past year, MYMF had a volatility of 0.29%, while MBB experienced 4.61%.
Which ETF is bigger: MYMF or MBB?
As of October 16, 2026, MYMF holds $8.71 M in assets under management (AUM), while MBB manages $35.27 B.
What sectors do the MYMF and MBB ETFs invest in?
MYMF leans toward sectors like Municipal. Meanwhile, MBB focuses on Industrials and Non-Corporate.
What are the top holdings of the MYMF ETF and MBB ETF?
MYMF top holdings include US213185NF46, Florida Municipal Power Agency, 5% 1oct2028, USD (2016A) and US34440PGE51. MBB holds in its top three: BlackRock Cash Funds - Institutional, US01F0526982 and US21H0526945.
Which ETF is more diversified: MYMF or MBB?
MYMF holds 68 securities with 41.96% of its assets in the top 15. MBB has 9405 securities and a top 15 weight of 16.82%.
Advertisement
Latest news about MYMF & MBB
The Weekly ETF Market Monitor (September 28-October 2, 2026)
October 2, 2026
MBB
NYSE x ETF Central ETF Education Series
March 5, 2024
MBB
Advertisement
Advertisement
