IBMSvsSMBSETF Comparison
VS
iShares iBonds Dec 2030 Term Muni Bond ETF (IBMS) belongs to the Municipal Bonds segment. Schwab Mortgage-Backed Securities ETF (SMBS) is part of the MBS & ABS segment. IBMS's top 2 sector exposures are Municipal and Non-Corporate. In contrast, SMBS's top sector exposures are Industrials, Finance and Government Agencies. IBMS is more expensive with a Total Expense Ratio (TER) of 0.1%, versus 0.03% for SMBS. IBMS is down -0.76% year-to-date (YTD) with +$144M in YTD flows. SMBS performs worse with -1.53% YTD performance, and +$770M in YTD flows. Run a side-by-side ETF comparison of IBMS and SMBS 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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IBMS vs SMBS performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IBMS SMBS | +0.03%-0.22% | -1.15%-2.21% | -0.76%-1.53% | -0.31%-1.08% | n/an/a | n/an/a |
| Flows | IBMS SMBS | +$19M-$72M | +$56M+$35M | +$144M+$770M | +$218M+$1.08B | -- | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IBMS SMBS | +3.22%+5.52% | +2.08%+4.35% | n/an/a | n/an/a |
| Max drawdown | IBMS SMBS | -3.36%-4.24% | -4.36%-5.12% | n/an/a | n/an/a |
| Max drawdown duration | IBMS SMBS | 64d52d | 232d229d | n/an/a | n/an/a |
Trading data
IBMS | SMBS | |
Last sale 10/19/2026 at 7:06 PM | $25.36 | $24.21 |
| Previous close 10/16/2026 | $25.35 | $24.29 |
| 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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IBMS | SMBS | |
|---|---|---|
| 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 7:06 PM
Live
Closed
IBMS | SMBS | |
|---|---|---|
| Last price | $25.36 | $24.21 |
| 1D performance | +0.04% | -0.35% |
| AuM | $363.12 M | $6.29 B |
| E/R | 0.1% | 0.03% |
Characteristics
IBMS | SMBS | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | Schwab ETFs |
| Benchmark | S&P AMT-Free Municipal Series Callable-Adjusted 2030 Index | Bloomberg U.S. MBS Float Adjusted Index |
| N° of holdings | 491 | 430 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | May 22, 2024 | November 19, 2024 |
| ESG | No | No |
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Exposure
Countries
IBMS
USA
33.92%
Other
66.08%
SMBS
USA
33.79%
Other
66.21%
Sectors
IBMS
Municipal
32.72%
Other
67.28%
SMBS
Industrials
33.23%
Other
66.77%
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Diversification
IBMS
Total weight of top 15 holdings out of 15
7.34%
SMBS
Total weight of top 15 holdings out of 15
5.8%
Top 15 holdings
Data as of August 31, 2026
IBMS
BlackRock Liquidity MuniCash
1.20%
New Jersey, 4% 1jun2030, USD
0.74%
US79625GNF62
0.59%
New York Metropolitan Transportation Authority, 5% 15nov2045, USD (2015A-2)
0.54%
US91412HWB58
0.49%
Connecticut Health and Educational Facilities Authority, 5% 1jul2064, USD (2025B-1)
0.47%
California, 5% 1nov2030, USD
0.42%
US544647MT41
0.40%
US03843TAY73
0.40%
US544647HM52
0.38%
US618024BT98
0.36%
Alabama Public School and College Authority, 5% 1nov2032, USD (2020-A)
0.36%
US419794B842
0.35%
Missouri Highways and Transportation Commission, 5% 1may2030, USD (2022)
0.32%
US39081HHV78
0.32%
SMBS
G2 MB0025, 5% 20nov2054, USD (ABS)
0.67%
US31427R6E50
0.59%
FR SD8469, 5.5% 1oct2054, USD (ABS)
0.48%
FR SD8193, 2% 1feb2052, USD (ABS)
0.40%
US31418DYX47
0.40%
FR SD8106, 2% 1nov2050, USD (ABS)
0.36%
US3618N6HU47
0.35%
FR RQ0110, 5% 1apr2056, USD (ABS)
0.34%
FR RQ0102, 5% 1mar2056, USD (ABS)
0.34%
US3132DWDC47
0.33%
FR SD7552, 2.5% 1jan2052, USD (ABS)
0.31%
US31418EQ948
0.31%
US3142J6BK85
0.30%
US3132DWAN39
0.30%
US3618N6NA19
0.30%
Frequently asked questions about IBMS and SMBS
How have the IBMS and SMBS ETFs performed in 2026?
As of October 16, 2026, IBMS is down -0.76% year-to-date (YTD), while SMBS has lost -1.53%. That puts IBMS better performer ahead so far this year.
Which ETF is attracting more investor money: IBMS or SMBS?
Year-to-date, the IBMS ETF saw +$144M in flows, compared to +$770M for SMBS.
Which ETF is more volatile: IBMS or SMBS?
Over the past year, IBMS had a volatility of 2.08%, while SMBS experienced 4.35%.
Which ETF is bigger: IBMS or SMBS?
As of October 16, 2026, IBMS holds $363.12 M in assets under management (AUM), while SMBS manages $6.29 B.
What sectors do the IBMS and SMBS ETFs invest in?
IBMS leans toward sectors like Municipal. Meanwhile, SMBS focuses on Industrials.
What are the top holdings of the IBMS ETF and SMBS ETF?
IBMS top holdings include BlackRock Liquidity MuniCash, New Jersey, 4% 1jun2030, USD and US79625GNF62. SMBS holds in its top three: G2 MB0025, 5% 20nov2054, USD (ABS), US31427R6E50 and FR SD8469, 5.5% 1oct2054, USD (ABS).
Which ETF is more diversified: IBMS or SMBS?
IBMS holds 1769 securities with 7.34% of its assets in the top 15. SMBS has 1965 securities and a top 15 weight of 5.8%.
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