MMITvsSPMBETF Comparison
VS
ETF 2
SPMB
State Street State Street SPDR Portfolio Mortgage Backed Bond ETF
This fund is part of
MBS & ABS
-0.03%
NYLI MacKay Muni Intermediate ETF (MMIT) belongs to the Municipal Bonds segment. State Street State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB) is part of the MBS & ABS segment. MMIT's top 1 sector exposures are Municipal. In contrast, SPMB's top sector exposures are Industrials, Finance and Government Agencies. MMIT is more expensive with a Total Expense Ratio (TER) of 0.48%, versus 0.04% for SPMB. MMIT is down -1.6% year-to-date (YTD) with +$337M in YTD flows. SPMB performs worse with -1.82% YTD performance, and +$555M in YTD flows. Run a side-by-side ETF comparison of MMIT and SPMB 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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MMIT vs SPMB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MMIT SPMB | -0.14%-0.29% | -2.89%-2.37% | -1.60%-1.82% | -0.87%-1.50% | +10.77%+16.97% | +3.05%-0.53% |
| Flows | MMIT SPMB | +$127M-$100M | +$161M+$98M | +$337M+$555M | +$462M+$791M | +$1.13B+$2.45B | +$1.43B+$3.57B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MMIT SPMB | +4.55%+5.74% | +2.83%+4.63% | +3.06%+5.81% | +3.08%+6.78% |
| Max drawdown | MMIT SPMB | -5.22%-4.41% | -5.97%-5.57% | -5.97%-5.57% | -11.87%-17.04% |
| Max drawdown duration | MMIT SPMB | 92d52d | 229d229d | 229d229d | 997d1436d |
Trading data
MMIT | SPMB | |
Last sale 10/19/2026 at 6:35 PM | $23.28 | $21.31 |
| Previous close 10/16/2026 | $23.29 | $21.38 |
| 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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MMIT
is actively managed and doesn’t replicate an indexMMIT | SPMB | |
|---|---|---|
| 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 6:35 PM
Live
Closed
MMIT | SPMB | |
|---|---|---|
| Last price | $23.28 | $21.31 |
| 1D performance | -0.06% | -0.33% |
| AuM | $1.58 B | $6.87 B |
| E/R | 0.48% | 0.04% |
Characteristics
MMIT | SPMB | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | New York Life Investments | State Street Investment Management |
| Benchmark | - | Bloomberg U.S. MBS Index |
| N° of holdings | 190 | 566 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 18, 2017 | January 15, 2009 |
| ESG | No | No |
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Exposure
Countries
MMIT
USA
30.87%
Other
69.13%
SPMB
USA
32.14%
Other
67.86%
Sectors
MMIT
Municipal
30.87%
Other
69.13%
SPMB
Industrials
31.8%
Other
68.2%
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Diversification
MMIT
Total weight of top 15 holdings out of 15
10.47%
SPMB
Total weight of top 15 holdings out of 15
9.79%
Top 15 holdings
Data as of August 31, 2026
MMIT
City of New York, 5.125% 15nov2011, USD
1.02%
Puerto Rico Sales Tax Financing Corp., 4.329% 1jul2040, USD
0.99%
Minnesota Municipal Gas Energy, 5% 1sep2035, USD (2026A)
0.90%
Hudson Yards Infrastructure Corp., 5% 15feb2042, USD
0.90%
Los Angeles Department of Water and Power, 5% 1jul2041, USD (2026)
0.89%
US70879QQA49
0.86%
Black Belt Energy Gas District, 4% 1oct2052, USD
0.62%
US850578UC77
0.62%
Chicago Board of Education, 6% 1apr2046, USD (2017)
0.58%
Phoenix Industrial Development Authority, 5% 31oct2044, USD (2024)
0.56%
US09182TFT97
0.56%
US74440DFC39
0.53%
US56035DJJ28
0.51%
Main Street Natural Gas Inc., 5% 1dec2052, USD (2022B)
0.47%
National Finance Authority, 4.25% 20jul2041, USD (2026-1, A-1)
0.46%
SPMB
US01F0526982
1.22%
US3142J6C840
1.13%
US01F0506927
0.95%
FN MA4547, 2% 1feb2052, USD (ABS)
0.76%
US3142J6BK85
0.73%
FR SD8212, 2.5% 1may2052, USD (ABS)
0.59%
US01F0606917
0.58%
US21H0526945
0.53%
US3132DWMY65
0.53%
G2 MB0424, 5.5% 20jun2055, USD (ABS)
0.52%
FN MA4701, 4.5% 1aug2052, USD (ABS)
0.49%
FN FA0608, 5.5% 1feb2055, USD (ABS)
0.47%
FN MA4465, 2% 1nov2051, USD (ABS)
0.45%
FR SD8193, 2% 1feb2052, USD (ABS)
0.43%
FN FS2040, 2% 1feb2052, USD (ABS)
0.43%
Frequently asked questions about MMIT and SPMB
How have the MMIT and SPMB ETFs performed in 2026?
As of October 16, 2026, MMIT is down -1.6% year-to-date (YTD), while SPMB has lost -1.82%. That puts MMIT better performer ahead so far this year.
Which ETF is attracting more investor money: MMIT or SPMB?
Year-to-date, the MMIT ETF saw +$337M in flows, compared to +$555M for SPMB.
Which ETF is more volatile: MMIT or SPMB?
Over the past year, MMIT had a volatility of 2.83%, while SPMB experienced 4.63%.
Which ETF is bigger: MMIT or SPMB?
As of October 16, 2026, MMIT holds $1.58 B in assets under management (AUM), while SPMB manages $6.87 B.
What sectors do the MMIT and SPMB ETFs invest in?
MMIT leans toward sectors like Municipal. Meanwhile, SPMB focuses on Industrials.
What are the top holdings of the MMIT ETF and SPMB ETF?
MMIT top holdings include City of New York, 5.125% 15nov2011, USD, Puerto Rico Sales Tax Financing Corp., 4.329% 1jul2040, USD and Minnesota Municipal Gas Energy, 5% 1sep2035, USD (2026A). SPMB holds in its top three: US01F0526982, US3142J6C840 and US01F0506927.
Which ETF is more diversified: MMIT or SPMB?
MMIT holds 865 securities with 10.47% of its assets in the top 15. SPMB has 2738 securities and a top 15 weight of 9.79%.
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