SMMUvsIBMXETF Comparison
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PIMCO Short Term Municipal Bond Active ETF (SMMU) and iShares iBonds Dec 2035 Term Muni Bond ETF (IBMX) belong to the same industry segment: Municipal Bonds. SMMU's top 3 sector exposures are Municipal, Sovereign and Government Agencies. In contrast, IBMX's top sector exposures are Municipal and Non-Corporate. SMMU is more expensive with a Total Expense Ratio (TER) of 0.35%, versus 0.1% for IBMX. Run a side-by-side ETF comparison of SMMU and IBMX 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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SMMU vs IBMX performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/01/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SMMU IBMX | +0.14%-0.87% | +0.22%-2.85% | +1.17%n/a | +2.38%n/a | +10.77%n/a | +9.73%n/a |
| Flows | SMMU IBMX | +$33M+$1M | +$86M+$1M | +$220M- | +$247M- | +$640M- | +$656M- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SMMU IBMX | +0.76%+3.12% | +0.78%n/a | +1.29%n/a | +1.27%n/a |
| Max drawdown | SMMU IBMX | -0.46%-3.29% | -0.81%n/a | -1.70%n/a | -4.65%n/a |
| Max drawdown duration | SMMU IBMX | 36d58d | 103dn/a | 58dn/a | 814dn/a |
Trading data
SMMU | IBMX | |
Last sale 9/3/2026 at 1:30 PM | $50.07 | $24.13 |
| Previous close 09/02/2026 | $50.09 | $24.16 |
| Consolidated volume 09/02/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of August 31, 2026
1-year trailing difference
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SMMU
is actively managed and doesn’t replicate an indexSMMU | IBMX | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/3/2026 at 1:30 PM
Live
Closed
SMMU | IBMX | |
|---|---|---|
| Last price | $50.07 | $24.13 |
| 1D performance | -0.04% | -0.12% |
| AuM | $1.19 B | $6.04 M |
| E/R | 0.35% | 0.1% |
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Exposure
Countries
SMMU
USA
44.47%
Other
55.53%
IBMX
USA
26.56%
Other
73.44%
Sectors
SMMU
Municipal
28.9%
Sovereign
8.39%
Government Agenci.
7.18%
Other
55.53%
IBMX
Municipal
25.8%
Other
74.2%
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Diversification
SMMU
Total weight of top 15 holdings out of 15
21.52%
IBMX
Total weight of top 15 holdings out of 15
25.78%
Top 15 holdings
Data as of July 31, 2026
SMMU
FHLB, 0% 21sep2026, USD (364D)
2.72%
USA, Notes 3.375% 29feb2028, USD (AY-2028)
2.21%
USA, Notes 3.5% 28feb2031, USD (V-2031)
1.76%
US20775DL830
1.72%
FHLB, 0% 4sep2026, USD (365D)
1.66%
USA, Bills 0% 15sep2026, USD (119D)
1.47%
New York Municipal Water Finance Authority, FRN 15jun2050, USD
1.32%
Fort Bend Independent School District, FRN 1aug2055, USD (2025B)
1.22%
Tarrant Cultural Education Facilities Finance Corp., FRN 15nov2063, USD (2026A&B)
1.20%
USA, Notes 4.625% 30apr2031, USD (K-2031)
1.16%
US20775DZL99
1.08%
US593344CB87
1.07%
US20775DTS17
1.02%
US57585BRA88
0.95%
US678604AC33
0.93%
IBMX
California, 5% 1oct2035, USD
3.08%
University of Texas, 5% 15aug2036, USD (2025B)
2.56%
Massachusetts Development Finance Agency, 5% 15may2055, USD (2025A-2)
2.31%
US677523RD66
2.21%
University of California, 5% 15may2038, USD (2025)
1.83%
Maryland, 5% 1jun2039, USD (2025)
1.81%
Los Angeles Unified School District, 5% 1jul2039, USD (2024QRR)
1.57%
Texas Transportation Commission, 5% 1oct2036, USD (2025)
1.50%
US59261AY925
1.47%
California, 5% 1sep2035, USD
1.40%
US684554GB85
1.36%
US207758Z305
1.26%
US64990KHR77
1.15%
State of Washington, 5% 1aug2039, USD (2025D)
1.14%
US64972JXD52
1.14%
Frequently asked questions about SMMU and IBMX
Which ETF is bigger: SMMU or IBMX?
As of September 1, 2026, SMMU holds $1.19 B in assets under management (AUM), while IBMX manages $6.04 M.
What sectors do the SMMU and IBMX ETFs invest in?
SMMU leans toward sectors like Municipal, Sovereign and Government Agencies. Meanwhile, IBMX focuses on Municipal.
What are the top holdings of the SMMU ETF and IBMX ETF?
SMMU top holdings include FHLB, 0% 21sep2026, USD (364D), USA, Notes 3.375% 29feb2028, USD (AY-2028) and USA, Notes 3.5% 28feb2031, USD (V-2031). IBMX holds in its top three: California, 5% 1oct2035, USD, University of Texas, 5% 15aug2036, USD (2025B) and Massachusetts Development Finance Agency, 5% 15may2055, USD (2025A-2).
Which ETF is more diversified: SMMU or IBMX?
SMMU holds 341 securities with 21.52% of its assets in the top 15. IBMX has 135 securities and a top 15 weight of 25.78%.
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