Returns Chart

Returns Chart

Key Stats

Net Expense Ratio Total Assets Under Management Weighted Average Dividend Yield Turnover Ratio (Generic)
1.10% 433.04M -- 59.00%
1 Year Fund Level Flows 1 Year Total Returns (Daily) Annualized Total Returns Since Inception (Daily) Max Drawdown (Since Inception)
40.48M 4.55%

Basic Info

Investment Strategy
The Fund seeks a high level of current income exempt from federal individual income tax. The Fund invests principally in a portfolio of municipal obligations issued by states and state agencies, local governments and their agencies, and by certain United States territories and possessions.
General
Security Type Mutual Fund
Equity Style --
Broad Asset Class Municipal Bond
Broad Category Fixed Income
Global Peer Group Bond USD Municipal
Peer Group General & Insured Municipal Debt Funds
Global Macro Bond HC
US Macro National Municipal Debt Funds
YCharts Categorization --
YCharts Benchmark --
Prospectus Objective General & Insured Municipal Debt Funds
Fund Owner Firm Name Thornburg
Broad Asset Class Benchmark Index
^BBMBTR 100.0%

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Net Fund Flows Versus Peer Group

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1M
3M
6M
YTD
1Y
3Y
5Y
10Y
 
80.00B
60.00B
40.00B
20.00B
0
-20.00B
1 Month
% Rank: 33
-70.72M Peer Group Low
698.62M Peer Group High
1 Year
% Rank: 37
40.48M
-718.23M Peer Group Low
7.550B Peer Group High
3 Months
% Rank: 36
-142.63M Peer Group Low
3.547B Peer Group High
3 Years
% Rank: 36
-4.737B Peer Group Low
18.17B Peer Group High
6 Months
% Rank: 36
-296.30M Peer Group Low
3.269B Peer Group High
5 Years
% Rank: 37
-8.513B Peer Group Low
35.43B Peer Group High
YTD
% Rank: 36
-444.31M Peer Group Low
4.025B Peer Group High
10 Years
% Rank: 47
-7.595B Peer Group Low
49.04B Peer Group High
Date Unavailable

Performance Versus Peer Group

 
20%
15%
10%
5%
0
Name
1M
3M
YTD
1Y
3Y
5Y
10Y
15Y
Total Return (NAV)
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
Peer Group Rtn. (NAV)
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
12.00%
% Rank in Peer Group (NAV)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
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Annual Total Returns Versus Peers

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Name
2019
2020
2021
2022
2023
2024
2025
YTD
5.03%
3.31%
0.81%
-8.71%
5.47%
2.32%
3.53%
1.18%
7.54%
5.21%
1.52%
-8.53%
6.40%
1.05%
4.25%
0.69%
6.74%
3.86%
0.61%
-10.28%
5.44%
1.37%
2.34%
0.69%
4.28%
2.70%
0.04%
-9.65%
3.48%
0.97%
3.08%
-0.05%
5.70%
3.25%
1.84%
-10.43%
5.23%
2.52%
3.99%
0.52%
7.74%
4.05%
1.89%
-12.47%
5.68%
0.80%
2.95%
-0.15%
As of August 26, 2026.

Fundamentals

General
Distribution Yield --
Dividend Yield TTM (8-25-26) 3.54%
30-Day SEC Yield (7-31-26) 3.31%
7-Day SEC Yield --
Number of Holdings 323
Bond
Yield to Maturity (5-31-26) 4.32%
Effective Duration --
Average Coupon 4.84%
Calculated Average Quality 3.017
Effective Maturity 15.78
Nominal Maturity 19.74
Number of Bond Holdings 320
As of May 31, 2026

Asset Allocation

As of May 31, 2026.
Type % Net
Cash -0.01%
Stock 0.00%
Bond 99.42%
Convertible 0.00%
Preferred 0.00%
Other 0.59%
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Fees & Availability

Fees
Actual 12B-1 Fee 0.60%
Actual Management Fee 0.06%
Administration Fee 3141.00 None
Maximum Front Load --
Maximum Deferred Load 0.60%
Maximum Redemption Fee --
General Availability
Available for Insurance Product No
Available for RRSP No
Purchase Details
Open to New Investors Yes
Minimum Initial Investment 5000.00 None
Minimum Subsequent Investment 100.00 None

Projected Income

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Type Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul
Qualified Income
-- -- -- -- -- -- -- -- -- -- -- --
Normal
-- -- -- -- -- -- -- -- -- -- -- --
Qualified
-- -- -- -- -- -- -- -- -- -- -- --
LT Cap Gains
-- -- -- -- -- -- -- -- -- -- -- --
Ordinary Income
-- -- -- -- -- -- -- -- -- -- -- --
Non-Qual
-- -- -- -- -- -- -- -- -- -- -- --
ST Cap Gains
-- -- -- -- -- -- -- -- -- -- -- --
Interest
-- -- -- -- -- -- -- -- -- -- -- --
Tax-Exempt
-- -- -- -- -- -- -- -- -- -- -- --
ROC
-- -- -- -- -- -- -- -- -- -- -- --
Other
-- -- -- -- -- -- -- -- -- -- -- --
Total
-- -- -- -- -- -- -- -- -- -- -- --
As of July 31, 2026.

Basic Info

Investment Strategy
The Fund seeks a high level of current income exempt from federal individual income tax. The Fund invests principally in a portfolio of municipal obligations issued by states and state agencies, local governments and their agencies, and by certain United States territories and possessions.
General
Security Type Mutual Fund
Equity Style --
Broad Asset Class Municipal Bond
Broad Category Fixed Income
Global Peer Group Bond USD Municipal
Peer Group General & Insured Municipal Debt Funds
Global Macro Bond HC
US Macro National Municipal Debt Funds
YCharts Categorization --
YCharts Benchmark --
Prospectus Objective General & Insured Municipal Debt Funds
Fund Owner Firm Name Thornburg
Broad Asset Class Benchmark Index
^BBMBTR 100.0%

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Fundamentals

General
Distribution Yield --
Dividend Yield TTM (8-25-26) 3.54%
30-Day SEC Yield (7-31-26) 3.31%
7-Day SEC Yield --
Number of Holdings 323
Bond
Yield to Maturity (5-31-26) 4.32%
Effective Duration --
Average Coupon 4.84%
Calculated Average Quality 3.017
Effective Maturity 15.78
Nominal Maturity 19.74
Number of Bond Holdings 320
As of May 31, 2026

Fund Details

Key Dates
Inception Date 4/1/2009
Last Annual Report Date 9/30/2025
Last Prospectus Date 2/1/2026
Share Classes
TSSAX A
TSSIX Inst
Attributes
Index Fund --
Inverse Fund No
Leveraged Fund --
Fund of Funds No
Currency Hedged Fund --
Socially Responsible Fund No

Top Portfolio Holders

Name % Weight
Portfolio A 5.00%
Portfolio B 3.50%
Portfolio C 2.25%
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Excel Add-In Codes

Name: =YCI("M:TSSCX", "name")
Broad Asset Class: =YCI("M:TSSCX", "broad_asset_class")
Broad Category: =YCI("M:TSSCX", "broad_category_group")
Prospectus Objective: =YCI("M:TSSCX", "prospectus_objective")
To find the codes for any of our securities and financial metrics, see our Complete Excel Reference.
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