Unsubscribe

Confirm you would like to unsubscribe from this list

You have unsaved changes on the page. Would you like to save them?

Remove strategy

Confirm you would like to remove this strategy from your list
Give Us a Call

Fund Operations
800.847.0200

FIND ANOTHER CONTACT

Thornburg Short Duration Municipal Fund

Morningstar Rating  • Info

Overall Morningstar Rating among 212 Muni National Short funds, based on risk-adjusted returns for class I shares, using a weighted average of the funds three-, five-, and ten-year ratings: respectively, 4 stars, 3 stars and 2 stars among 212, 197 and 155 funds, as of 31 May 2025.

As of 31 May 2025
Fund Assets
$114.9 M
As of 31 May 2025
NAV
$11.91
As of 30 Jun 2025
Change
$0.00
As of 30 Jun 2025
YTD NAV Performance
1.82%
As of 30 Jun 2025
Asset Category:
Municipal Bond
Fund Benchmark:
ICE BofA 1-3 Year U.S. Municipal Securities Index

Portfolio Managers

Portfolio Manager and Managing Director
Portfolio Manager and Managing Director
Portfolio Manager and Managing Director
Overview

Overview

Why Invest in This Fund?

 

  • Actively managed diversified portfolio of high-quality municipal bonds with an average duration of no more than three years.
  • Proven bottom-up fundamental approach that incorporates a top-down macroeconomic overlay to identify what we perceive to be the most attractive opportunities on a relative value basis across geographic regions, sectors, issuers and revenue streams.
  • Income-seeking fund that aims for a stable net asset value, making it attractive for those with a short investment horizon, and is positioned to quickly take advantage of any increases in short-term interest rates.

Investment Objective

The fund’s goal is to provide investors with current income exempt from federal income tax, consistent with preservation of capital.

Investment Approach

The fund is an actively managed diversified portfolio of municipal bonds. To reduce changes in its share value compared to longer duration fixed income portfolios, the fund normally maintains an average duration of no more than three years. The management team seeks to match municipal market structure and deal flow through a relative value framework that operates across geography, sectors, issuers and revenue streams. The strategy maintains exposure across the maturity spectrum to manage duration, hedge against interest rate fluctuations and limit taxable events.

Performance

Performance

Returns

(As of 31 Mar 2025)
YTD
1y
3y
5y
10y
Inception
Total Return (%)
0.99
3.52
2.50
1.29
1.07
1.00
ICE BofA 1-3 Year U.S. Municipal Securities Index (%)
1.01
3.62
2.43
1.50
1.38
1.31
Morningstar Category Avg. (%)
0.78
3.09
2.27
1.5
1.3
Morningstar Quartile
2
2
3
4
Morningstar Quartile # of Funds
229
212
197
155
YTD
1y
3y
5y
10y
Inception
Total Return (%)
1.29
3.61
2.61
1.21
1.12
1.02
ICE BofA 1-3 Year U.S. Municipal Securities Index (%)
1.40
4.03
2.49
1.27
1.43
1.33
Morningstar Category Avg. (%)
1.08
3.56
2.44
1.32
1.36
Morningstar Quartile
3
2
3
4
Morningstar Quartile # of Funds
229
212
197
155
YTD
1y
3y
5y
10y
Inception
Total Return (%)
0.99
3.52
7.69
6.62
11.24
11.90
ICE BofA 1-3 Year U.S. Municipal Securities Index (%)
1.01
3.62
7.48
7.72
14.69
15.81
YTD
1y
3y
5y
10y
Inception
Total Return (%)
1.29
3.61
8.02
6.19
11.78
12.24
ICE BofA 1-3 Year U.S. Municipal Securities Index (%)
1.40
4.03
7.66
6.53
15.20
16.25
2019
2020
2021
2022
2023
2024
Total Return (%)
2.12
0.99
-0.05
-2.33
3.75
2.74
ICE BofA 1-3 Year U.S. Municipal Securities Index (%)
2.88
2.16
0.34
-2.03
3.35
2.63
Fund Fees

Fund Fees

(As of 1 Feb 2025)
Gross Expense Ratio (%)
0.63
Net Expense Ratio (%)
0.50
Hypothetical Growth of $10,000

Hypothetical Growth of $10,000

(As of 31 May 2025)
(Hypothetical Growth of $10,000 vs ICE BofA 1-3 Year U.S. Municipal Securities Index)
Distributions

Distributions

(As of 30 May 2025)
Ex-Date
Payable Date
Total ($)
Income ($)
ST Cap Gains ($)
LT Cap Gains ($)
31 Jan 2014
31 Jan 2014
0.00296
0.00296
28 Feb 2014
28 Feb 2014
0.00667
0.00667
31 Mar 2014
31 Mar 2014
0.00399
0.00399
30 Apr 2014
30 Apr 2014
0.00329
0.00329
30 May 2014
31 May 2014
0.00330
0.00330
30 Jun 2014
30 Jun 2014
0.00458
0.00458
31 Jul 2014
31 Jul 2014
0.00577
0.00577
29 Aug 2014
31 Aug 2014
0.00363
0.00363
30 Sep 2014
30 Sep 2014
0.00446
0.00446
31 Oct 2014
31 Oct 2014
0.00375
0.00375
28 Nov 2014
30 Nov 2014
0.00404
0.00404
31 Dec 2014
31 Dec 2014
0.00142
0.00142
30 Jan 2015
31 Jan 2015
0.00011
0.00011
27 Feb 2015
28 Feb 2015
0.00361
0.00361
31 Mar 2015
31 Mar 2015
0.00212
0.00212
30 Apr 2015
30 Apr 2015
0.00397
0.00397
29 May 2015
31 May 2015
0.00311
0.00311
30 Jun 2015
30 Jun 2015
0.00457
0.00457
31 Jul 2015
31 Jul 2015
0.00346
0.00346
31 Aug 2015
31 Aug 2015
0.00395
0.00395
30 Sep 2015
30 Sep 2015
0.00489
0.00489
30 Oct 2015
31 Oct 2015
0.00343
0.00343
30 Nov 2015
30 Nov 2015
0.00385
0.00385
31 Dec 2015
31 Dec 2015
0.00282
0.00282
29 Jan 2016
31 Jan 2016
0.00338
0.00338
29 Feb 2016
29 Feb 2016
0.00517
0.00517
31 Mar 2016
31 Mar 2016
0.00393
0.00393
29 Apr 2016
30 Apr 2016
0.00598
0.00598
31 May 2016
31 May 2016
0.00522
0.00522
30 Jun 2016
30 Jun 2016
0.00611
0.00611
29 Jul 2016
31 Jul 2016
0.00450
0.00450
31 Aug 2016
31 Aug 2016
0.00401
0.00401
30 Sep 2016
30 Sep 2016
0.00573
0.00573
31 Oct 2016
31 Oct 2016
0.00415
0.00415
30 Nov 2016
30 Nov 2016
0.00488
0.00488
30 Dec 2016
31 Dec 2016
0.00433
0.00433
31 Jan 2017
31 Jan 2017
0.00912
0.00912
28 Feb 2017
28 Feb 2017
0.01020
0.01020
31 Mar 2017
31 Mar 2017
0.00852
0.00852
28 Apr 2017
30 Apr 2017
0.01006
0.01006
31 May 2017
31 May 2017
0.00937
0.00937
30 Jun 2017
30 Jun 2017
0.01085
0.01085
31 Jul 2017
31 Jul 2017
0.01048
0.01048
31 Aug 2017
31 Aug 2017
0.01049
0.01049
29 Sep 2017
30 Sep 2017
0.01113
0.01113
31 Oct 2017
31 Oct 2017
0.01005
0.01005
30 Nov 2017
30 Nov 2017
0.01121
0.01121
29 Dec 2017
31 Dec 2017
0.01080
0.01080
31 Jan 2018
31 Jan 2018
0.01090
0.01090
28 Feb 2018
28 Feb 2018
0.01260
0.01260
29 Mar 2018
31 Mar 2018
0.01092
0.01092
30 Apr 2018
30 Apr 2018
0.01253
0.01253
31 May 2018
31 May 2018
0.00993
0.00993
29 Jun 2018
30 Jun 2018
0.01138
0.01138
31 Jul 2018
31 Jul 2018
0.01020
0.01020
31 Aug 2018
31 Aug 2018
0.01284
0.01284
28 Sep 2018
30 Sep 2018
0.01346
0.01346
31 Oct 2018
31 Oct 2018
0.01351
0.01351
30 Nov 2018
30 Nov 2018
0.01495
0.01495
31 Dec 2018
31 Dec 2018
0.01456
0.01456
31 Jan 2019
31 Jan 2019
0.01278
0.01278
28 Feb 2019
28 Feb 2019
0.01774
0.01774
29 Mar 2019
31 Mar 2019
0.01612
0.01612
30 Apr 2019
30 Apr 2019
0.01661
0.01661
31 May 2019
31 May 2019
0.01539
0.01539
28 Jun 2019
30 Jun 2019
0.01635
0.01635
31 Jul 2019
31 Jul 2019
0.01445
0.01445
31 Aug 2019
31 Aug 2019
0.01401
0.01401
30 Sep 2019
30 Sep 2019
0.01464
0.01464
31 Oct 2019
31 Oct 2019
0.01376
0.01376
30 Nov 2019
30 Nov 2019
0.01333
0.01333
31 Dec 2019
31 Dec 2019
0.01375
0.01375
31 Jan 2020
31 Jan 2020
0.01284
0.01284
29 Feb 2020
29 Feb 2020
0.01356
0.01356
31 Mar 2020
31 Mar 2020
0.01668
0.01668
30 Apr 2020
30 Apr 2020
0.01306
0.01306
31 May 2020
31 May 2020
0.01260
0.01260
30 Jun 2020
30 Jun 2020
0.01284
0.01284
31 Jul 2020
31 Jul 2020
0.01146
0.01146
31 Aug 2020
31 Aug 2020
0.01094
0.01094
30 Sep 2020
30 Sep 2020
0.00967
0.00967
30 Oct 2020
31 Oct 2020
0.00622
0.00622
30 Nov 2020
30 Nov 2020
0.00674
0.00674
31 Dec 2020
31 Dec 2020
0.00539
0.00539
29 Jan 2021
31 Jan 2021
0.00447
0.00447
26 Feb 2021
28 Feb 2021
0.00624
0.00624
31 Mar 2021
31 Mar 2021
0.00400
0.00400
30 Apr 2021
30 Apr 2021
0.00475
0.00475
28 May 2021
31 May 2021
0.00416
0.00416
30 Jun 2021
30 Jun 2021
0.00461
0.00461
30 Jul 2021
31 Jul 2021
0.00374
0.00374
31 Aug 2021
31 Aug 2021
0.00358
0.00358
30 Sep 2021
30 Sep 2021
0.00417
0.00417
29 Oct 2021
31 Oct 2021
0.00389
0.00389
30 Nov 2021
30 Nov 2021
0.00507
0.00507
31 Dec 2021
31 Dec 2021
0.00491
0.00491
31 Jan 2022
31 Jan 2022
0.00477
0.00477
28 Feb 2022
28 Feb 2022
0.00739
0.00739
31 Mar 2022
31 Mar 2022
0.00613
0.00613
29 Apr 2022
30 Apr 2022
0.00881
0.00881
31 May 2022
31 May 2022
0.01028
0.01028
30 Jun 2022
30 Jun 2022
0.01144
0.01144
29 Jul 2022
31 Jul 2022
0.01312
0.01312
31 Aug 2022
31 Aug 2022
0.01495
0.01495
30 Sep 2022
30 Sep 2022
0.01652
0.01652
31 Oct 2022
31 Oct 2022
0.01897
0.01897
30 Nov 2022
30 Nov 2022
0.01854
0.01854
30 Dec 2022
31 Dec 2022
0.02213
0.02213
31 Jan 2023
31 Jan 2023
0.02160
0.02160
28 Feb 2023
28 Feb 2023
0.02444
0.02444
31 Mar 2023
31 Mar 2023
0.02574
0.02574
28 Apr 2023
30 Apr 2023
0.02670
0.02670
31 May 2023
31 May 2023
0.02705
0.02705
30 Jun 2023
30 Jun 2023
0.02809
0.02809
31 Jul 2023
31 Jul 2023
0.02873
0.02873
31 Aug 2023
31 Aug 2023
0.03015
0.03015
29 Sep 2023
30 Sep 2023
0.03076
0.03076
31 Oct 2023
31 Oct 2023
0.03144
0.03144
30 Nov 2023
30 Nov 2023
0.03145
0.03145
29 Dec 2023
31 Dec 2023
0.03156
0.03156
31 Jan 2024
31 Jan 2024
0.03198
0.03198
29 Feb 2024
29 Feb 2024
0.03243
0.03243
28 Mar 2024
31 Mar 2024
0.03210
0.03210
30 Apr 2024
30 Apr 2024
0.03264
0.03264
31 May 2024
31 May 2024
0.03208
0.03208
28 Jun 2024
30 Jun 2024
0.03270
0.03270
31 Jul 2024
31 Jul 2024
0.03327
0.03327
30 Aug 2024
31 Aug 2024
0.03352
0.03352
30 Sep 2024
30 Sep 2024
0.03320
0.03320
31 Oct 2024
31 Oct 2024
0.03288
0.03288
29 Nov 2024
30 Nov 2024
0.03254
0.03254
31 Dec 2024
31 Dec 2024
0.03268
0.03268
31 Jan 2025
31 Jan 2025
0.03210
0.03210
28 Feb 2025
28 Feb 2025
0.03284
0.03284
31 Mar 2025
31 Mar 2025
0.03223
0.03223
30 Apr 2025
30 Apr 2025
0.03293
0.03293
30 May 2025
31 May 2025
0.03257
0.03257
Fund Facts

Fund Facts

(As of 31 May 2025)
Net Fund Assets
$114.9 M
Benchmark
ICE BofA 1-3 Year U.S. Municipal Securities Index
Morningstar Category
Muni National Short
Fund Symbol
TLMIX
Share Class
I
Share Class Inception Date
30 Dec 2013
Number of Holdings
130
Portfolio Turnover
64%
Distribution Frequency
Monthly
30-Day SEC Yield (Subsidized)
3.20%
30-Day SEC Yield (Unsubsidized)
3.06%
Annualized Distribution Yield
3.18%
Characteristics

Characteristics

Portfolio

(As of 31 May 2025)
Portfolio
Benchmark
Effective Duration
1.3 Yrs
1.6 Yrs
Average Effective Maturity
1.7 Yrs
1.8 Yrs
Weighted Average Coupon
4.1%
4.5%
Portfolio
Benchmark
Yield to Worst
3.6%
3.1%
Subject to Alternative Minimum Tax
14.3%
Risk & Return Profile

Risk & Return Profile

(As of 31 May 2025)
3y
5y
10y
Annualized Alpha (%)
0.51
0.11
-0.08
Standard Deviation (%)
1.91
1.76
1.39
Sharpe Ratio
-1.07
-0.91
-0.61
Up Capture (%)
93.00
91.14
80.35
Down Capture (%)
75.43
87.40
81.63
Portfolio

Portfolio

Top Holdings

(As of 30 Apr 2025)
Name
Ticker/Symbol
Weight %
PEFA, Inc.
70556CAB0
2.6
Indiana Finance Authority
45505RBN4
2.6
Massachusetts Development Finance Agency
57584YPF0
2.2
Kentucky Public Energy Authority
74440DFN9
2.1
Travis County Housing Finance Corp.
89438UBM9
1.8
Tennergy Corp./TN
880397CJ1
1.8
City of Los Angeles Department of Airports
5444452K4
1.8
Harris County Cultural Education Facilities Finance Corp.
414009NF3
1.8
California Municipal Finance Authority
13048RAF4
1.7
Knox County Health Educational & Housing Facility Board
499652AM7
1.7
Exposure Breakdown

Exposure Breakdown

(As of 31 May 2025)
Sector Allocation
Fund (%)
Benchmark (%)

Fund

Benchmark

0%
5%
10%
15%
20%
25%
30%
Multi Family Mortgage
20.1
5.7
Industrial Development/Pollution Control
17.4
Gas
9.5
Hospital
9.1
4.6
School District General Obligation
6.1
Public Power
5.1
4.6
US Treasuries
4.2
Airport
3.5
2.6
Cash & Cash Equivalents
3.2
Local General Obligation
3.1
14.4
School District App
2.6
Sector Allocation
Fund (%)
Multi Family Mortgage
20.1
Industrial Development/Pollution Control
17.4
Gas
9.5
Hospital
9.1
School District General Obligation
6.1
Public Power
5.1
US Treasuries
4.2
Airport
3.5
Cash & Cash Equivalents
3.2
Local General Obligation
3.1
School District App
2.6
Top 10 U.S. States
Fund (%)
Benchmark (%)

Portfolio

Benchmark

0%
5%
10%
15%
20%
Texas
15.1
8.6
California
7.8
16.3
Illinois
7.0
4.6
Florida
5.2
2.7
Pennsylvania
4.9
3.2
Tennessee
4.6
1.0
Indiana
4.5
0.6
US
4.2
Wisconsin
3.7
2.2
Alabama
3.3
2.4
Cash
3.2
Top 10 U.S. States
Fund (%)
Texas
15.1
California
7.8
Illinois
7.0
Florida
5.2
Pennsylvania
4.9
Tennessee
4.6
Indiana
4.5
US
4.2
Wisconsin
3.7
Alabama
3.3
Cash
3.2
Credit Quality
Fund (%)
Benchmark (%)

Fund

Benchmark

0%
10%
20%
30%
40%
50%
60%
AAA
10.0
18.7
AA
40.1
56.2
A
33.2
21.9
BBB
9.6
3.3
Not Rated
3.9
Cash & Cash Equivalents
3.2
Credit Quality
Fund (%)
AAA
10.0
AA
40.1
A
33.2
BBB
9.6
Not Rated
3.9
Cash & Cash Equivalents
3.2
Maturity
Fund (%)
Benchmark (%)

Fund

Benchmark

0%
10%
20%
30%
40%
50%
60%
Year 1
36.7
3.0
Year 2
23.4
51.0
Year 3
16.5
45.0
Year 4
6.3
Year 5+
13.8
Cash
3.2
Maturity
Fund (%)
Year 1
36.7
Year 2
23.4
Year 3
16.5
Year 4
6.3
Year 5+
13.8
Cash
3.2
Portfolio Managers

Portfolio Managers

David Ashley, CFA

David Ashley, CFA

Portfolio Manager and Managing Director
David Ashley is a portfolio manager for Thornburg Investment Management. He joined Thornburg as associate portfolio manager in 2011 and was named portfolio manager in 2019. Dave earned a BS in finance and MBA from the University of Delaware in 2001. He is also a CFA charterholder. Prior to joining Thornburg Investment Management, Dave was a credit analyst for Wilmington…
Learn More
Eve Lando, JD

Eve Lando, JD

Portfolio Manager and Managing Director
Eve Lando is a portfolio manager for Thornburg Investment Management. She joined Thornburg's municipal team in 2019 as associate portfolio manager and was named portfolio manager in 2020. Eve holds a BA in urban studies from Columbia University and a JD from Brooklyn Law School, with a concentration in business law studies. She has extensive experience in municipal bond research…
Learn More
Craig Mauermann, ChFC

Craig Mauermann, ChFC

Portfolio Manager and Managing Director
Craig Mauermann, ChFC, is a portfolio manager for Thornburg Investment Management. He joined the firm in 2021 as a senior fixed income analyst and was promoted to associate portfolio manager in 2024 and was named portfolio manager in 2025. Craig has extensive municipal research and investment experience. He began his career at Strong Capital Management as an analyst and trader…
Learn More

More Insights

3D miniature Downtown of Los Angeles in spot light. Real Estate concept. 3D rendering.
Fixed Income

Investor Update: A Potential Reprieve for the Municipal Bond Tax Exemption

We provide an update on the developments surrounding the municipal bond tax exemption in a fast-moving environment.
Man looks out at a beautiful view from a conference room
Markets & Economy

FOMC Update: Fiscal Challenges Taking a Back Seat to Geopolitical Risks

Christian Hoffmann, CFA, Head of Fixed Income, shares his perspective on the Fed’s stance and the potential impact of monetary policy.
A woman with umbrella and smart phone.
Markets & Economy

Fixed Income: Finding Income and Playing Defense Through Volatility

Position fixed income portfolios for yield and ballast through market turbulence and economic uncertainty.
Local people carrying water pots through fields by the Taj Mahal, Agra, India
Emerging Markets

Investment Perspectives from the Road: India

Our investment professionals travel the world to evaluate global markets and unearth the most optimal ideas. Josh Rubin recently visited India, and here are his perspectives.
From the bottom of the staircase, the spiral staircase.
Fixed Income

Revisiting Our 2025 Outlook: What’s Unfolding and What Lies Ahead

As we move further into 2025, many of the themes outlined in our 2025 outlook are playing out.
Map with colorful overlay
Markets & Economy

The Global Shift: Why Non-U.S. Equities Are Taking Center Stage

Market volatility brings opportunity. Watch a macro overview of why international investments are relevant now.