Thornburg Investment Income Builder Fund
Actively managed global stock fund
The Funds primary investment goal is to provide a level of current income which exceeds the average yield on U.S. stocks generally, and which will generally grow, subject to periodic fluctuations, over the years on a per share basis.
The fund invests in a diversified portfolio of income-producing securities, primarily stocks and bonds selected by Thornburg Investment Management for their ability to generate current income, with at least 50% in common stocks and at least 80% overall in income-producing securities. Equity holdings emphasize dividend-paying companies, including smaller-cap and international stocks, while debt holdings span all credit qualities including high-yield bonds with no minimum rating requirement. Because performance depends on Thornburg's security selection and the fund may hold convertible bonds and other hybrid instruments alongside equities and debt of varying maturities and credit quality, results will diverge from any broad market benchmark.
What you own
| Company | Weight | Value | Shares | Reported price |
|---|---|---|---|---|
Thornburg Capital Management Fund | 7.50% | $1.69B | 168.7M | $10.00 |
Orange SA | 6.04% | $1.36B | 72.1M | $18.86 |
Taiwan Semiconductor Manufacturing Co Ltd | 5.93% | $1.34B | 17.6M | $75.65 |
Samsung Electronics Co Ltd | 4.49% | $1.01B | 4.7M | $215.58 |
BNP Paribas SA | 4.48% | $1.01B | 8.6M | $116.71 |
4.06% | $914.09M | 6.5M | $139.96 | |
NN Group NV | 3.73% | $839.30M | 9.6M | $87.59 |
AVGOBroadcom Inc | 2.90% | $651.86M | 1.7M | $377.75 |
TotalEnergies SE | 2.86% | $644.02M | 8.3M | $77.73 |
2.81% | $631.52M | 30.5M | $20.70 |
Reported price is the fund's own reported value divided by its own reported shares at 2026-06-30 — not a live quote, and not what the fund paid.
The 200 largest of 328 holdings, with the share counts as filed, open with a free account.
What the fund is made of
Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.
| Stocks | 86.37% |
| Cash & short-term | 7.52% |
| Bonds | 3.71% |
| Securitized | 1.92% |
| Loans | 0.24% |
| Derivatives | -0.10% |
Look-through blends 1 underlying fund; 0.0% of NAV was not looked through and stays direct-classified.
The outer band is exposure held short — written against the portfolio rather than part of it, which is why it sits outside the ring and why the two are never netted into one figure.
By sector
- International
- 66.3%
- Other
- 8.9%
- Financials
- 7.6%
- Information Technology
- 4.3%
- 10 other sectors
- 12.8%
- International
- 66.3%
- Other
- 8.9%
- Financials
- 7.6%
- Information Technology
- 4.3%
- Communication Services
- 2.8%
- Consumer Staples
- 2.8%
- Health Care
- 2.7%
- Securitized
- 1.9%
- Energy
- 1.1%
- Consumer Discretionary
- 0.8%
- Utilities
- 0.3%
- Government
- 0.2%
- Industrials
- 0.2%
- Cash
- 0.0%
How it has done
TIBAX share class · total returns with dividends reinvested
Volatility over the last 12 months: 9.78%. Past returns are a record, not a forecast.
May 2026 and Jun 2026 have been filed since the trailing figures were struck, so they are not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.
The 7 share classes hold the same portfolio
| Share class | Expense ratio | 1 year | 3 years | 5 years | Worst fall |
|---|---|---|---|---|---|
| 1.17% | +42.78% | +94.20% | +109.44% | -4.77% | |
| 1.93% | +41.72% | +89.81% | +101.65% | -4.91% | |
| 0.93% | +43.09% | +95.52% | +111.95% | -4.66% | |
| 1.54% | +42.26% | +92.02% | +105.59% | -4.82% | |
| 1.03% | +42.95% | +94.95% | +110.86% | -4.70% | |
| 1.44% | +42.38% | +92.76% | +106.84% | -4.83% | |
| 0.84% | +43.21% | +96.02% | +112.82% | -4.66% |
These classes hold the same portfolio, so the 11.17pp spread over 5 years is the cost difference between them — roughly 2.23pp a year — not a difference in what they own.
Fees & fund details
Thornburg Investment Income Builder Fund is an actively managed global equity fund.
- Asset class
- Equity
- Region
- Global
- Management
- Actively managed
- Fund type
- Open-end fund
- Expense ratio, by class
- 0.84% – 1.93%· TIBAX 1.17%
- Portfolio turnover
- 27.78% a year · as of 2026 Q1
Net is what a holder pays after the adviser's contractual waiver; gross is before it. A waiver can expire.
Turnover is how much of the portfolio was replaced in a year.
Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.
What changed this quarter
Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.
14 new· the largest 8
18 exited· the largest 8
Debt profile
What this fund holds — value-weighted across its bond and securitized long positions · as of 2026-06-30
Share of the fund's debt by how its coupon behaves — the fact that decides whether a rate move reaches this portfolio at all.
| Fixed rate | 69.5% |
| Floating rate | 26.5% |
| Zero-coupon or unclassified | 3.9% |
Share of the fund's debt value in each maturity band, shortest first.
| <1y | 8.9% |
| 1-3y | 20.5% |
| 3-5y | 12.6% |
| 5-10y | 26.1% |
| 10y+ | 31.9% |
Based on what filers reported; a filer that never reported a flag also reads as none.
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