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TIBOX

Thornburg Investment Income Builder Fund

Morningstar Rating  • Info

Overall Morningstar Rating among 171 Global Moderately Aggressive Allocation funds, based on risk-adjusted returns for class R6 shares, using a weighted average of the funds three-, five-, and ten-year ratings: respectively, 5 stars, 5 stars and 5 stars among 171, 168 and 141 funds, as of 31 Aug 2026.

As of 31 Aug 2026
Fund Assets
$23.2 B
As of 31 Aug 2026
NAV
$38.81
As of 17 Sep 2026
Change
$0.22
As of 17 Sep 2026
YTD NAV Performance
20.17%
As of 17 Sep 2026
Asset Category:
Multi-Asset
Fund Benchmark:
Investment Income Builder Blended Index

Portfolio Managers

Head of Equities, Portfolio Manager and Managing Director
Vice Chairman, Chief Investment Strategist, Portfolio Manager and Managing Director
Head of Fixed Income, Portfolio Manager and Managing Director

Globally Diversified Income

Cultivating the growth of dividends for almost two decades

The Investment Income Builder Fund has been able to deliver a consistent income stream to clients while continuing to grow their principal.

We believe that the power of dividends combined with our active approach can serve two goals:

  1. Help meet short-term funding needs, such as retirement income or foundation distributions.
  2. Contribute significantly to long-term growth to help make a future income stream last.

To learn more, download our client-approved brochure or continue to explore the rest of the page.

Download

Overview

Overview

Why Invest in This Fund?

 

  • Global, diversified multi-asset portfolio of income-producing stocks and bonds that seeks to deliver an attractive and growing income stream.
  • Proven bottom-up fundamental research process to identify dividend-paying companies with strong cash flows that have both the ability and willingness to pay and grow their dividends over time.
  • Highly active, flexible approach that allows us to go anywhere in the world to seek income.

Investment Objective

The fund’s goal is to provide investors with a level of current income which exceeds the average yield on U.S. stocks generally, and which will grow, subject to periodic fluctuations, over the years on a per share basis.

Investment Approach

The strategy is a multi-asset portfolio of global dividend-paying stocks selected via a bottom-up, fundamentals and valuation-sensitive process. The strategy seeks to generate an attractive and growing income stream, with capital appreciation over time by building a portfolio of companies that have the ability and willingness to generate cash flow and distribute dividends to its shareholders.

Performance

Performance

Returns

(As of 30 Jun 2026)
YTD
1y
3y
5y
10y
Inception
Total Return (%)
16.23
33.02
25.05
16.15
12.46
10.91
Investment Income Builder Blended Index (%)
7.48
16.84
15.40
8.66
10.32
8.48
Morningstar Category Avg. (%)
10.12
19.63
15.53
8.02
9.51
Morningstar Quartile
1
1
1
1
Morningstar Quartile # of Funds
175
171
168
141
YTD
1y
3y
5y
10y
Inception
Total Return (%)
19.79
30.79
25.73
16.35
12.41
10.97
Investment Income Builder Blended Index (%)
9.73
15.61
16.00
8.37
10.18
8.51
Morningstar Category Avg. (%)
11.93
17.77
15.97
7.92
9.32
Morningstar Quartile
1
1
1
1
Morningstar Quartile # of Funds
175
171
168
141
YTD
1y
3y
5y
10y
Inception
Total Return (%)
16.23
33.02
95.54
111.42
223.64
1040.64
Investment Income Builder Blended Index (%)
7.48
16.84
53.67
51.46
166.93
577.62
YTD
1y
3y
5y
10y
Inception
Total Return (%)
19.79
30.79
98.78
113.25
222.03
1075.58
Investment Income Builder Blended Index (%)
9.73
15.61
56.09
49.44
163.65
591.78
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
Total Return (%)
9.93
15.01
-4.31
18.08
-0.28
20.38
-7.91
18.24
13.44
37.01
Investment Income Builder Blended Index (%)
6.41
17.42
-6.42
22.87
14.41
15.64
-16.67
19.05
14.12
17.60
Fund Fees

Fund Fees

(As of 1 Feb 2026)
Gross Expense Ratio (%)
0.85
Net Expense Ratio (%)
0.83
Hypothetical Growth of $10,000

Hypothetical Growth of $10,000

(As of 31 Aug 2026)
(Hypothetical Growth of $10,000 vs Investment Income Builder Blended Index)
Distributions

Distributions

(As of 17 Sep 2026)
Ex-Date
Payable Date
Total ($)
Income ($)
ST Cap Gains ($)
LT Cap Gains ($)
31 Mar 2017
31 Mar 2017
0
23 Jun 2017
30 Jun 2017
0.22121
0.22121
22 Sep 2017
30 Sep 2017
0.29198
0.29198
27 Dec 2017
31 Dec 2017
0.31763
0.31763
23 Mar 2018
31 Mar 2018
0.19908
0.19908
22 Jun 2018
30 Jun 2018
0.21881
0.21881
21 Sep 2018
30 Sep 2018
0.25829
0.25829
26 Dec 2018
31 Dec 2018
0.29891
0.29891
22 Mar 2019
31 Mar 2019
0.20632
0.20632
21 Jun 2019
30 Jun 2019
0.23359
0.23359
20 Sep 2019
30 Sep 2019
0.26767
0.26767
27 Dec 2019
31 Dec 2019
0.31966
0.31966
19 Mar 2020
31 Mar 2020
0.20509
0.20509
18 Jun 2020
30 Jun 2020
0.20811
0.20811
17 Sep 2020
30 Sep 2020
0.22832
0.22832
28 Dec 2020
31 Dec 2020
0.30977
0.30977
18 Mar 2021
31 Mar 2021
0.24145
0.24145
17 Jun 2021
30 Jun 2021
0.29456
0.29456
16 Sep 2021
30 Sep 2021
0.33036
0.33036
27 Dec 2021
31 Dec 2021
0.39303
0.39303
6 Jan 2022
31 Jan 2022
0.06548
0.06548
17 Mar 2022
31 Mar 2022
0.21712
0.21712
16 Jun 2022
30 Jun 2022
0.27011
0.27011
15 Sep 2022
30 Sep 2022
0.30915
0.30915
27 Dec 2022
31 Dec 2022
0.40881
0.40881
16 Mar 2023
31 Mar 2023
0.22578
0.22578
15 Jun 2023
30 Jun 2023
0.26922
0.26922
14 Sep 2023
30 Sep 2023
0.30790
0.30790
26 Dec 2023
31 Dec 2023
0.38778
0.38778
21 Mar 2024
31 Mar 2024
0.24326
0.24326
20 Jun 2024
30 Jun 2024
0.27656
0.27656
19 Sep 2024
30 Sep 2024
0.31245
0.31245
21 Nov 2024
21 Nov 2024
0.22099
0.05531
0.16568
26 Dec 2024
31 Dec 2024
0.42464
0.42464
20 Mar 2025
31 Mar 2025
0.24385
0.24385
17 Jun 2025
30 Jun 2025
0.27818
0.27818
18 Sep 2025
30 Sep 2025
0.34131
0.34131
20 Nov 2025
20 Nov 2025
0.66183
0.00000
0.66183
22 Dec 2025
31 Dec 2025
0.42796
0.42796
19 Mar 2026
31 Mar 2026
0.26184
0.26184
17 Jun 2026
30 Jun 2026
0.29321
0.29321
17 Sep 2026
30 Sep 2026
0.35567
0.35567
Fund Facts

Fund Facts

(As of 31 Aug 2026)
Net Fund Assets
$23.2 B
Benchmark
Investment Income Builder Blended Index
Morningstar Category
Global Moderately Aggressive Allocation
Fund Symbol
TIBOX
Share Class
R6
Share Class Inception Date
10 Apr 2017
Distribution Frequency
Quarterly
Characteristics

Characteristics

Portfolio

(As of 31 Aug 2026)
Portfolio
Benchmark
Number of Holdings
321
Weighted Average Market Cap
$336.3 B
$1,152.2 B
Median Market Cap
$65.2 B
$29.9 B
Annual Portfolio Turnover
28%
Price to Earnings - Forward 1YR
12.6x
19.2x
Dividend Yield
3.4%
1.4%
Price to Earnings - Trailing 12 Months
17.2x
26.4x
Price to Cash Flow
6.8x
16.3x
Price to Book Value
2.1x
4.1x
Portfolio
Benchmark
Active Share
92.5%
Effective Duration
3.8 Yrs
5.8 Yrs
Average Effective Maturity
6.5 Yrs
8.1 Yrs
Weighted Average Coupon
2.8%
3.8%
Yield to Worst
8.4%
5.0%
30-Day SEC Yield (Subsidized)
2.3%
30-Day SEC Yield (Unsubsidized)
2.3%
Distribution Yield - Trailing 12 Months
3.47%
Risk & Return Profile

Risk & Return Profile

(As of 31 Aug 2026)
3y
5y
10y
Annualized Alpha (%)
14.24
9.14
2.52
Beta
0.64
0.78
0.96
R-Squared (%)
47.63
67.26
72.78
Standard Deviation (%)
9.21
11.90
13.12
Sharpe Ratio
2.26
1.04
0.75
Information Ratio
1.24
1.06
0.29
Tracking Error (%)
7.58
7.32
6.87
Up Capture (%)
116.93
111.04
102.49
Down Capture (%)
50.34
69.11
89.07
Portfolio

Portfolio

Top Holdings

(As of 31 Aug 2026)
Name
Ticker/Symbol
Sector
Weight %
Taiwan Semiconductor Manufacturing Co. Ltd.
2330
Information Technology
5.8
Orange S.A.
ORA
Communication Services
5.6
BNP Paribas S.A.
BNP
Financials
4.4
Samsung Electronics Co. Ltd.
005930
Information Technology
3.8
NN Group N.V.
NN
Financials
3.7
Citigroup, Inc.
C
Financials
3.7
AT&T, Inc.
T
Communication Services
3.5
TotalEnergies SE
TTE
Energy
3.0
Broadcom, Inc.
AVGO
Information Technology
2.8
Kimberly-Clark Corp.
KMB
Consumer Staples
2.7
Name
Ticker/Symbol
Sector
Weight %
Telefonica Emisiones S.A.
87938WAC7
Corporate Bond
0.4
The Bank of New York Mellon Corp.
064058AL4
Corporate Bond
0.2
CoBank ACB
19075QAC6
Corporate Bond
0.1
Deutsche Telekom International Finance BV
25156PAC7
Corporate Bond
0.1
Booz Allen Hamilton, Inc.
09951LAD5
Corporate Bond
0.1
Kinder Morgan, Inc.
49456BAG6
Corporate Bond
0.1
MFA 2026-NPL1, LLC
592929AA1
Asset Backed Securities
0.1
Fortiva Retail Credit Master Note Business Trust
34962AAZ5
Asset Backed Securities
0.1
Imagefirst Holdings, LLC
45249TAR3
Loan Participation
0.1
PRET 2026-NPL5, LLC
69384KAA4
Asset Backed Securities
0.1
Exposure Breakdown

Exposure Breakdown

(As of 31 Aug 2026)
Sector Allocation
Fund (%)
Benchmark (%)

Fund

Benchmark

0%
5%
10%
15%
20%
25%
30%
Financials
23.8
16.6
Communication Services
23.6
7.9
Information Technology
15.6
29.8
Energy
7.3
4.1
Health Care
7.3
9.3
Consumer Staples
6.6
4.9
Utilities
5.6
2.4
Industrials
4.5
11.1
Materials
3.0
3.5
Consumer Discretionary
2.4
8.8
Real Estate
0.0
1.6
Unassigned
0.1
Sector Allocation
Fund (%)
Financials
23.8
Communication Services
23.6
Information Technology
15.6
Energy
7.3
Health Care
7.3
Consumer Staples
6.6
Utilities
5.6
Industrials
4.5
Materials
3.0
Consumer Discretionary
2.4
Real Estate
0.0
Unassigned
0.1
Top 10 Industries
Fund (%)
Benchmark (%)

Fund

Benchmark

0%
5%
10%
15%
20%
25%
30%
Telecommunication Services
23.6
1.4
Banks
12.3
7.5
Semiconductors & Semiconductor Equipment
9.7
13.7
Insurance
8.3
2.8
Energy
7.3
4.1
Pharmaceuticals, Biotechnology & Life Sciences
6.4
6.7
Technology Hardware & Equipment
5.7
7.9
Utilities
5.6
2.4
Household & Personal Products
3.6
1.0
Financial Services
3.3
6.2
Top 10 Industries
Fund (%)
Telecommunication Services
23.6
Banks
12.3
Semiconductors & Semiconductor Equipment
9.7
Insurance
8.3
Energy
7.3
Pharmaceuticals, Biotechnology & Life Sciences
6.4
Technology Hardware & Equipment
5.7
Utilities
5.6
Household & Personal Products
3.6
Financial Services
3.3
Top 10 Countries
Fund (%)
Benchmark (%)
Region

Portfolio

Benchmark

0%
10%
20%
30%
40%
50%
60%
70%
80%
United States
26.3
77.6
North America
France
14.5
1.8
Europe ex UK
United Kingdom
12.3
2.9
UK
Netherlands
6.8
1.1
Europe ex UK
Taiwan
5.8
Asia Pacific ex Japan
Korea, Republic of (South Korea)
3.8
0.0
Asia Pacific ex Japan
Germany
3.6
1.7
Europe ex UK
Italy
3.6
0.6
Europe ex UK
Canada
2.7
2.9
North America
Spain
2.4
0.8
Europe ex UK
Top 10 Countries
Fund (%)
United States
26.3
France
14.5
United Kingdom
12.3
Netherlands
6.8
Taiwan
5.8
Korea, Republic of (South Korea)
3.8
Germany
3.6
Italy
3.6
Canada
2.7
Spain
2.4
Composition
Fund (%)
Benchmark (%)

Fund

Benchmark

0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
Equity
87.4
75.0
Cash & Equivalents
7.0
Fixed Income
5.6
25.0
Composition
Fund (%)
Equity
87.4
Cash & Equivalents
7.0
Fixed Income
5.6
Capitalization
Fund (%)
Benchmark (%)

Fund

Benchmark

0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Large Cap (> $12 B)
94.6
98.8
Mid Cap ($2.5 to $12 B)
4.5
1.2
Small Cap (< $2.5 B)
0.8
Unassigned
0.0
Capitalization
Fund (%)
Large Cap (> $12 B)
94.6
Mid Cap ($2.5 to $12 B)
4.5
Small Cap (< $2.5 B)
0.8
Unassigned
0.0
Credit Quality
Fund (%)
Benchmark (%)

Fund

Benchmark

0%
10%
20%
30%
40%
50%
60%
70%
80%
U.S. Government
2.6
70.3
AAA
5.9
3.0
AA
3.1
4.1
A
7.1
11.1
BBB
33.3
11.1
BB
23.3
0.4
B
6.5
0.0
CCC
0.5
Not Rated
17.8
Credit Quality
Fund (%)
U.S. Government
2.6
AAA
5.9
AA
3.1
A
7.1
BBB
33.3
BB
23.3
B
6.5
CCC
0.5
Not Rated
17.8
Maturity
Fund (%)
Benchmark (%)

Fund

Benchmark

0%
5%
10%
15%
20%
25%
30%
Year 1
20.1
1.1
Year 2
6.6
12.8
Year 3
11.4
10.4
Year 4
11.5
8.8
Year 5
10.3
9.6
Year 6
8.7
6.3
Year 7
5.5
7.9
Year 8
2.1
8.0
Year 9
6.4
9.8
Year 10+
17.3
25.3
Maturity
Fund (%)
Year 1
20.1
Year 2
6.6
Year 3
11.4
Year 4
11.5
Year 5
10.3
Year 6
8.7
Year 7
5.5
Year 8
2.1
Year 9
6.4
Year 10+
17.3
Portfolio Managers

Portfolio Managers

Matt Burdett

Head of Equities, Portfolio Manager and Managing Director
Matt Burdett is head of equities and a portfolio manager for Thornburg Investment Management. He rejoined the firm in 2015 as an associate portfolio manager. Matt was named a managing director and was promoted to portfolio manager in 2018 and to head of equities in 2024. Matt spent several years as a senior vice president and portfolio manager at PIMCO,…
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Brian McMahon

Vice Chairman, Chief Investment Strategist, Portfolio Manager and Managing Director
Brian McMahon is chief investment strategist and a portfolio manager for Thornburg Investment Management. Brian is deeply respected for his market and investment insight and serves as a key voice for the investment team and Thornburg clients. He also co-manages Thornburg’s global equity portfolios and serves as vice chairman of Thornburg. Brian joined Thornburg in 1984 as chief investment officer;…
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Christian Hoffmann, CFA

Head of Fixed Income, Portfolio Manager and Managing Director
Christian Hoffmann is head of fixed income and a portfolio manager for Thornburg Investment Management. He joined the firm in 2012 as a fixed income analyst and was promoted to associate portfolio manager in 2014. Christian was named a managing director in 2017, was promoted to portfolio manager in 2018, and to head of fixed income in 2024. Prior to…
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