IBMOvsIBMSETF Comparison
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iShares iBonds Dec 2026 Term Muni Bond ETF (IBMO) and iShares iBonds Dec 2030 Term Muni Bond ETF (IBMS) belong to the same industry segment: Municipal Bonds. Both ETFs have the same top 2 sector exposures: Municipal and Non-Corporate. Both IBMO and IBMS have the same Total Expense Ratio (TER) of 0.1%. IBMO is up 1.93% year-to-date (YTD) with -$58M in YTD flows. IBMS performs worse with -0.77% YTD performance, and +$144M in YTD flows. Run a side-by-side ETF comparison of IBMO and IBMS 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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IBMO vs IBMS performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/15/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IBMO IBMS | +0.23%-0.03% | +0.62%-1.29% | +1.93%-0.77% | +2.48%-0.25% | +10.53%n/a | +4.52%n/a |
| Flows | IBMO IBMS | -$33M+$20M | -$69M+$56M | -$58M+$144M | -$9M+$218M | +$183M- | +$391M- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IBMO IBMS | +0.13%+3.23% | +0.21%+2.08% | +0.79%n/a | +1.52%n/a |
| Max drawdown | IBMO IBMS | n/a-3.36% | -0.05%-4.36% | -0.74%n/a | -8.06%n/a |
| Max drawdown duration | IBMO IBMS | n/a63d | 13d231d | 46dn/a | 1150dn/a |
Trading data
IBMO | IBMS | |
Last sale 10/16/2026 at 1:30 PM | $25.62 | $25.33 |
| Previous close 10/15/2026 | $25.62 | $25.34 |
| Consolidated volume 10/15/2026 | ||
| 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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IBMO | IBMS | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/16/2026 at 1:30 PM
Live
Closed
IBMO | IBMS | |
|---|---|---|
| Last price | $25.62 | $25.33 |
| 1D performance | -0.00% | -0.04% |
| AuM | $511.38 M | $363.08 M |
| E/R | 0.1% | 0.1% |
Characteristics
IBMO | IBMS | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | iShares |
| Benchmark | S&P AMT-Free Municipal Series Callable-Adjusted Dec 2026 Index | S&P AMT-Free Municipal Series Callable-Adjusted 2030 Index |
| N° of holdings | 238 | 491 |
| Asset class | Fixed Income | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | April 2, 2019 | May 22, 2024 |
| ESG | No | No |
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Exposure
Countries
IBMO
USA
36.17%
Other
63.83%
IBMS
USA
33.92%
Other
66.08%
Sectors
IBMO
Municipal
36.12%
Other
63.88%
IBMS
Municipal
32.72%
Other
67.28%
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Diversification
IBMO
Total weight of top 15 holdings out of 15
46.15%
IBMS
Total weight of top 15 holdings out of 15
7.34%
Top 15 holdings
Data as of August 31, 2026
IBMO
US1966307T89
4.51%
Orlando Utilities Commission, FRN 1oct2039, USD (2015B)
4.51%
US20775DTT99
4.33%
US812643ZK32
3.82%
US79642GTU66
3.82%
US44244CN944
3.61%
US254845VW74
3.61%
US89602RPH20
3.01%
US196707Y498
2.53%
Battery Park City Authority, FRN 1nov2038, USD (2019D)
2.45%
Metropolitan Atlanta Rapid Transit Authority, FRN 1jul2045, USD (2026B)
2.16%
Long Island Power Authority, FRN 1sep2042, USD (2026A)
2.07%
US576051R651
2.00%
US495290ET12
1.91%
US542691LG38
1.80%
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%
Frequently asked questions about IBMO and IBMS
How have the IBMO and IBMS ETFs performed in 2026?
As of October 15, 2026, IBMO is up 1.93% year-to-date (YTD), while IBMS has lost -0.77%. That puts IBMO better performer ahead so far this year.
Which ETF is attracting more investor money: IBMO or IBMS?
Year-to-date, the IBMO ETF saw -$58M in flows, compared to +$144M for IBMS.
Which ETF is more volatile: IBMO or IBMS?
Over the past year, IBMO had a volatility of 0.21%, while IBMS experienced 2.08%.
Which ETF is bigger: IBMO or IBMS?
As of October 15, 2026, IBMO holds $511.38 M in assets under management (AUM), while IBMS manages $363.08 M.
What sectors do the IBMO and IBMS ETFs invest in?
IBMO leans toward sectors like Municipal. Meanwhile, IBMS focuses on Municipal.
What are the top holdings of the IBMO ETF and IBMS ETF?
IBMO top holdings include US1966307T89, Orlando Utilities Commission, FRN 1oct2039, USD (2015B) and US20775DTT99. IBMS holds in its top three: BlackRock Liquidity MuniCash, New Jersey, 4% 1jun2030, USD and US79625GNF62.
Which ETF is more diversified: IBMO or IBMS?
IBMO holds 517 securities with 46.15% of its assets in the top 15. IBMS has 1769 securities and a top 15 weight of 7.34%.
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