AMUNvsCGSMETF Comparison
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abrdn Ultra Short Municipal Income Active ETF (AMUN) and Capital Group Short Duration Municipal Income ETF (CGSM) belong to the same industry segment: Municipal Bonds. AMUN's top 2 sector exposures are Municipal and Non-Corporate. In contrast, CGSM's top sector exposures are Municipal. AMUN is more expensive with a Total Expense Ratio (TER) of 0.74%, versus 0.25% for CGSM. AMUN is up 1.98% year-to-date (YTD) with +$29M in YTD flows. CGSM performs worse with 0.64% YTD performance, and +$723M in YTD flows. Run a side-by-side ETF comparison of AMUN and CGSM 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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AMUN vs CGSM performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | AMUN CGSM | +0.10%-0.02% | +0.44%-0.75% | +1.98%+0.64% | +2.58%+1.21% | n/a+13.41% | n/an/a |
| Flows | AMUN CGSM | +$3M+$68M | +$5M+$128M | +$29M+$723M | +$58M+$808M | -+$1.63B | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | AMUN CGSM | +0.47%+2.20% | +0.32%+1.67% | n/a+1.95% | n/an/a |
| Max drawdown | AMUN CGSM | -0.31%-2.33% | -0.31%-2.33% | n/a-2.33% | n/an/a |
| Max drawdown duration | AMUN CGSM | 36d52d | 36d52d | n/a52d | n/an/a |
Trading data
AMUN | CGSM | |
Last sale 10/19/2026 at 1:30 PM | $26.01 | $25.97 |
| Previous close 10/16/2026 | $26.00 | $25.98 |
| Consolidated volume 10/16/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 10/19/2026 at 1:30 PM
Live
Closed
AMUN | CGSM | |
|---|---|---|
| Last price | $26.01 | $25.97 |
| 1D performance | +0.02% | -0.04% |
| AuM | $58.20 M | $1.65 B |
| E/R | 0.74% | 0.25% |
Characteristics
AMUN | CGSM | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | abrdn | Capital Group |
| Benchmark | - | - |
| N° of holdings | 18 | 235 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 17, 2025 | September 26, 2023 |
| ESG | No | No |
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Exposure
Countries
AMUN
USA
27.85%
Other
72.15%
CGSM
USA
30.46%
Other
69.54%
Sectors
AMUN
Municipal
27.62%
Other
72.38%
CGSM
Municipal
30.46%
Other
69.54%
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Diversification
AMUN
Total weight of top 15 holdings out of 15
46.38%
CGSM
Total weight of top 15 holdings out of 15
11.02%
Top 15 holdings
Data as of August 31, 2026
AMUN
US46640KYU23
3.99%
US230589AB90
3.68%
Chandler Industrial Development Authority, 5% 1sep2052, USD (2022-2)
3.66%
Newark, 4.25% 5may2027, USD (2026)
3.64%
US478232SD45
3.64%
US88035TZV50
3.62%
US7386297S79
3.62%
US64972GU289
3.26%
Mississippi Business Finance Corp., FRN 1nov2032, USD (2007A)
2.97%
US414008CX87
2.67%
Main Street Natural Gas Inc., 4% 1may2052, USD
2.59%
US546598AB98
2.54%
PEFA Inc., 5% 1sep2049, USD (2019)
2.27%
US06964KAB26
2.17%
US20774YV531
2.06%
CGSM
US650028E821
1.12%
US574193XS28
1.02%
US34153QZG45
1.01%
US83703FLR19
0.99%
Triborough Bridge and Tunnel Authority, 5% 1feb2028, USD (2026A)
0.83%
US373385QZ98
0.66%
PEFA Inc., 5% 1sep2049, USD (2019)
0.63%
US57421CLT98
0.63%
Puerto Rico, FRN 1nov2043, USD
0.62%
Virginia College Building Authority, 5% 1feb2032, USD
0.62%
US48542TBS87
0.61%
US74440DFN93
0.59%
Black Belt Energy Gas District, 5% 1jun2031, USD (2026)
0.58%
US254773BN34
0.57%
New York Municipal Water Finance Authority, FRN 15jun2053, USD (2023)
0.54%
Frequently asked questions about AMUN and CGSM
How have the AMUN and CGSM ETFs performed in 2026?
As of October 16, 2026, AMUN is up 1.98% year-to-date (YTD), while CGSM has returned 0.64%. That puts AMUN better performer ahead so far this year.
Which ETF is attracting more investor money: AMUN or CGSM?
Year-to-date, the AMUN ETF saw +$29M in flows, compared to +$723M for CGSM.
Which ETF is more volatile: AMUN or CGSM?
Over the past year, AMUN had a volatility of 0.32%, while CGSM experienced 1.67%.
Which ETF is bigger: AMUN or CGSM?
As of October 16, 2026, AMUN holds $58.20 M in assets under management (AUM), while CGSM manages $1.65 B.
What sectors do the AMUN and CGSM ETFs invest in?
AMUN leans toward sectors like Municipal. Meanwhile, CGSM focuses on Municipal.
What are the top holdings of the AMUN ETF and CGSM ETF?
AMUN top holdings include US46640KYU23, US230589AB90 and Chandler Industrial Development Authority, 5% 1sep2052, USD (2022-2). CGSM holds in its top three: US650028E821, US574193XS28 and US34153QZG45.
Which ETF is more diversified: AMUN or CGSM?
AMUN holds 68 securities with 46.38% of its assets in the top 15. CGSM has 1032 securities and a top 15 weight of 11.02%.
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Latest news about AMUN & CGSM
A Close Look at Capital Group's 5 New Active ETFs Listed on NYSE ARCA
October 26, 2023
CGSM
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