Thornburg Investment Income Builder Fund
THORNBURG INVESTMENT TRUST · Series S000011851 · 7 share classes
data updated 2026-09-08
Fund profile
As filed in the prospectus · 2026 Q1
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.
| Share class | Gross | Net | As of |
|---|---|---|---|
| TIBAX | 1.17% | — | 2025 Q1 |
| TIBCX | 1.93% | — | 2025 Q1 |
| TIBIX | 0.93% | — | 2025 Q1 |
| TIBRX | 1.72% | 1.54% | 2025 Q1 |
| TIBMX | 1.29% | 1.03% | 2025 Q1 |
| TIBGX | 1.61% | 1.44% | 2025 Q1 |
| TIBOX | 0.87% | 0.84% | 2025 Q1 |
Net is what a holder pays after the adviser's contractual waiver; gross is before it. A waiver can expire.
Portfolio turnover 27.78% · as of 2026 Q1
Allocation
Asset groups · long / short shown separately, never netted · 2026 Q2
| 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.
Latest quarter
What changed since the fund's previous filing
Largest new: KMB, Telenor ASA, BT Group PLC, Yutong Bus Co Ltd, Telkom Indonesia Persero Tbk PT, Bayerische Motoren Werke AG, BOOZ ALLEN HAMILTON INC, Pretium Mortgage Credit Partners LLC
Largest exited: Nestle SA, Daimler Truck Holding AG, Swisscom AG, Mercedes-Benz Group AG, LyondellBasell Industries NV, Engie SA, EMERA INC, TDG
Return profile
Total return as filed — price change plus distributions reinvested · trailing figures to Apr 2026
| Share class | 1-year | 3-year | 5-year | Vol | Worst fall |
|---|---|---|---|---|---|
| +42.78% | +94.20% | +109.44% | 9.78% | -4.77% | |
| +41.72% | +89.81% | +101.65% | 9.76% | -4.91% | |
| +43.09% | +95.52% | +111.95% | 9.78% | -4.66% | |
| +42.26% | +92.02% | +105.59% | 9.77% | -4.82% | |
| +42.95% | +94.95% | +110.86% | 9.77% | -4.70% | |
| +42.38% | +92.76% | +106.84% | 9.76% | -4.83% | |
| +43.21% | +96.02% | +112.82% | 9.75% | -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.
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.
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.
Holdings
By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page
| Ticker | Issuer | %NAV | Reported price | Value | Shares |
|---|---|---|---|---|---|
| — | Thornburg Capital Management Fund | 7.50% | $10.00 | $1.69B | 168.7M |
| — | Orange SA | 6.04% | $18.86 | $1.36B | 72.1M |
| — | Taiwan Semiconductor Manufacturing Co Ltd | 5.93% | $75.65 | $1.34B | 17.6M |
| — | Samsung Electronics Co Ltd | 4.49% | $215.58 | $1.01B | 4.7M |
| — | BNP Paribas SA | 4.48% | $116.71 | $1.01B | 8.6M |
| C | Citigroup IncC | 4.06% | $139.96 | $914.09M | 6.5M |
| — | NN Group NV | 3.73% | $87.59 | $839.30M | 9.6M |
| AVGO | Broadcom IncAVGO | 2.90% | $377.75 | $651.86M | 1.7M |
| — | TotalEnergies SE | 2.86% | $77.73 | $644.02M | 8.3M |
| T | AT&T IncT | 2.81% | $20.70 | $631.52M | 30.5M |
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.
Top 10 positions are 44.80% of net assets, top 25 72.89%, across 208 issuers.
See more of this fund's book
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