IBMSvsIBMTETF Comparison
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iShares iBonds Dec 2030 Term Muni Bond ETF (IBMS) and iShares iBonds Dec 2031 Term Muni Bond ETF (IBMT) belong to the same industry segment: Municipal Bonds. Both ETFs have the same top 2 sector exposures: Municipal and Non-Corporate. Both IBMS and IBMT have the same Total Expense Ratio (TER) of 0.1%. IBMS is down -0.76% year-to-date (YTD) with +$144M in YTD flows. IBMT performs worse with -1.5% YTD performance, and +$134M in YTD flows. Run a side-by-side ETF comparison of IBMS and IBMT 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 IBMT 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 IBMT | +0.03%+0.15% | -1.15%-1.56% | -0.76%-1.50% | -0.31%-1.01% | n/an/a | n/an/a |
| Flows | IBMS IBMT | +$19M+$29M | +$56M+$63M | +$144M+$134M | +$218M+$157M | -- | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IBMS IBMT | +3.22%+4.03% | +2.08%+2.59% | n/an/a | n/an/a |
| Max drawdown | IBMS IBMT | -3.36%-4.21% | -4.36%-5.71% | n/an/a | n/an/a |
| Max drawdown duration | IBMS IBMT | 64d64d | 232d232d | n/an/a | n/an/a |
Trading data
IBMS | IBMT | |
Last sale 10/19/2026 at 5:58 PM | $25.35 | $25.08 |
| Previous close 10/16/2026 | $25.35 | $25.09 |
| 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 | IBMT | |
|---|---|---|
| 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 5:58 PM
Live
Closed
IBMS | IBMT | |
|---|---|---|
| Last price | $25.35 | $25.08 |
| 1D performance | +0.00% | -0.02% |
| AuM | $363.12 M | $184.12 M |
| E/R | 0.1% | 0.1% |
Characteristics
IBMS | IBMT | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | iShares |
| Benchmark | S&P AMT-Free Municipal Series Callable-Adjusted 2030 Index | S&P AMT-Free Municipal Series Callable-Adjusted 2031 Index |
| N° of holdings | 491 | 356 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | May 22, 2024 | March 25, 2025 |
| ESG | No | No |
Exposure
Countries
IBMS
USA
33.92%
Other
66.08%
IBMT
USA
34.79%
Other
65.21%
Sectors
IBMS
Municipal
32.72%
Other
67.28%
IBMT
Municipal
34.44%
Other
65.56%
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Diversification
IBMS
Total weight of top 15 holdings out of 15
7.34%
IBMT
Total weight of top 15 holdings out of 15
6.88%
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%
IBMT
New Jersey, 4% 1jun2031, USD
0.84%
US373385QZ98
0.75%
North Texas Tollway Authority, 0% 1jan2031, USD (2008D, 8308D)
0.50%
US61334PFN87
0.47%
Los Angeles Unified School District, 5% 1jul2031, USD (2024)
0.45%
Honolulu, 5% 1mar2031, USD (2021E)
0.40%
University of California, 5% 15may2035, USD (2021)
0.40%
US7417018C37
0.40%
New York Dormitory Authority, 5% 15mar2035, USD (2021A)
0.39%
US650028F323
0.39%
US592190TC68
0.39%
US45528US510
0.39%
California Public Works Board, 4% 1oct2035, USD
0.39%
US13068XBK46
0.37%
US167736W298
0.37%
Frequently asked questions about IBMS and IBMT
How have the IBMS and IBMT ETFs performed in 2026?
As of October 16, 2026, IBMS is down -0.76% year-to-date (YTD), while IBMT has lost -1.5%. That puts IBMS better performer ahead so far this year.
Which ETF is attracting more investor money: IBMS or IBMT?
Year-to-date, the IBMS ETF saw +$144M in flows, compared to +$134M for IBMT.
Which ETF is more volatile: IBMS or IBMT?
Over the past year, IBMS had a volatility of 2.08%, while IBMT experienced 2.59%.
Which ETF is bigger: IBMS or IBMT?
As of October 16, 2026, IBMS holds $363.12 M in assets under management (AUM), while IBMT manages $184.12 M.
What sectors do the IBMS and IBMT ETFs invest in?
IBMS leans toward sectors like Municipal. Meanwhile, IBMT focuses on Municipal.
What are the top holdings of the IBMS ETF and IBMT ETF?
IBMS top holdings include BlackRock Liquidity MuniCash, New Jersey, 4% 1jun2030, USD and US79625GNF62. IBMT holds in its top three: New Jersey, 4% 1jun2031, USD, US373385QZ98 and North Texas Tollway Authority, 0% 1jan2031, USD (2008D, 8308D).
Which ETF is more diversified: IBMS or IBMT?
IBMS holds 1769 securities with 7.34% of its assets in the top 15. IBMT has 1203 securities and a top 15 weight of 6.88%.
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