Columbia Ultra Short Duration Municipal Bond Fund (USMBX)

Fund Assets	78.03M
Expense Ratio	0.47%
Min. Investment	$2,000
Turnover	38.00%
Dividend (ttm)	0.25
Dividend Yield	2.54%
Dividend Growth	-16.00%
Payout Frequency	Monthly
Ex-Dividend Date	Aug 31, 2026

Previous Close	9.95
YTD Return	1.02%
1-Year Return	1.53%
5-Year Return	n/a
52-Week Low	9.95
52-Week High	10.06
Beta (5Y)	0.03
Holdings	69
Inception Date	n/a

About USMBX

Columbia Ultra Short Duration Municipal Bond Fund Class A is a mutual fund specializing in municipal bonds with very short durations, typically less than four years. Its primary function is to offer investors a stable source of tax-exempt income by investing in bonds issued by state and local governments, which fund various public projects such as infrastructure and community development. The distinguishing feature of this fund is its focus on minimizing interest rate risk by maintaining ultra-short maturities, making it particularly relevant for investors seeking preservation of capital and liquidity with comparatively low volatility. As part of the muni national short portfolio category, it diversifies holdings across states and sectors, further reducing risk. The fund is notable for providing federally tax-free income, with potential for state tax exemptions depending on the bond’s jurisdiction. Within the financial market, it serves as a vital tool for both individuals and institutions aiming to manage cash in a low-risk environment, especially during periods of interest rate uncertainty or when seeking alternatives to traditional cash or money market instruments.

• Fund Family: Columbia Threadneedle
• Category: Muni National Short
• Performance Rating: Average
• Risk Rating: Below Average
• Stock Exchange: NASDAQ
• Ticker Symbol: USMBX
• Share Class: Class A

Performance

USMBX had a total return of 1.53% in the past year, including dividends. Since the fund's inception, the average annual return has been 2.10%.

Other Share Classes

These are alternative share classes of the same fund, from the same provider.

Symbol	Share Class	Expense Ratio
USMEX	Institutional Class	0.32%

Top 10 Holdings

27.55% of assets

Name	Symbol	Weight
BlackRock Liquidity MuniCash Instl	MCSXX	4.97%
State of Maryland - MARYLAND ST	MD.MDS 5 08.01.2028	2.93%
Fairfax County Redevelopment & Housing Authority - FAIRFAX CNTY VA REDEV & HSG AUTH MF HSG REVENUE	VA.FAIMFH 01.01.2045	2.84%
PORT AUTHORITY OF NEW YORK AND NEW JERSEY	NY.PORTRN 5 09.01.2026	2.80%
Colorado Housing and Finance Authority - COLORADO ST HSG & FIN AUTH SF MTGE REVENUE	CO.COSHSG 3.1 10.01.2027	2.79%
State of Minnesota - MINNESOTA ST	MN.MNS 5 09.01.2028	2.66%
City of Fall River MA - FALL RIVER MA	MA.FAL 4 01.29.2027	2.22%
State of Wisconsin - WISCONSIN ST	WI.WIS 5 05.01.2027	2.13%
MISSOURI (STATE OF)	MO.MOSUTL 4 10.01.2027	2.11%
PMA Levy & Aid Anticipation Notes Program - PMA LEVY & AID ANTIC NTS PROGRAM WI	WI.PMANTS 5 09.24.2026	2.10%

Dividend History

Ex-Dividend	Amount	Pay Date
Aug 31, 2026	$0.02116	Aug 31, 2026
Jul 31, 2026	$0.01863	Jul 31, 2026
Jun 30, 2026	$0.02017	Jun 30, 2026
May 29, 2026	$0.02038	May 29, 2026
Apr 30, 2026	$0.02079	Apr 30, 2026
Mar 31, 2026	$0.02144	Mar 31, 2026

Data Sources: Tiingo, Twelve Data, and more

Historical data is provided by Tiingo. Delayed stock pricing data is provided by Twelve Data. Several fund data points are also provided by Finnhub.

Last checked:

Sep 19, 2026

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