Fund Evaluator:
Thornburg Limited Term US Government I (LTUIX)
Follow This Fund
Best Performing in Government Mortgage-Backed Bond Over the Last Year
| 4.4% | Fidelity Mortgage Securities (FMSFX) |
| 4.4% | Fidelity Advisor Mortgage Securities Z (FIKUX) |
| 4.3% | Fidelity GNMA (FGMNX) |
| 4.3% | Vanguard Mortgage-Backed Secs Idx Adm (VMBSX) |
| 4.2% | Vanguard GNMA Adm (VFIJX) |
Fund Details
Thornburg Limited Term US Government I Overview
Thornburg Limited Term US Government I (LTUIX) is an actively managed Taxable Bond Government Mortgage-Backed Bond fund. Thornburg launched the fund in 1996.
The investment seeks to provide as high a level of current income as is consistent, in the view of the fund’s investment advisor, with safety of capital; to reduce changes in its share price compared to longer term portfolios is the secondary objective. The fund invests at least 80% of its assets in U.S. government securities. The manager seeks to reduce changes in its share value by maintaining a portfolio of investments with a dollar-weighted average maturity or expected life of normally less than five years.
About Thornburg Limited Term US Government I (LTUIX)
There are 2 members of the management team with an average tenure of 7.50 years: Lon Erickson (2015), Christian Hoffmann (2023). Management tenure is more important for actively managed funds than passive index funds.
The fund has 2 primary benchmarks: Bloomberg US Agg Bond TR USD index with a weighting of 100% and Bloomberg US Govt Interm TR USD index with a weighting of 100%. Thornburg Limited Term US Government I has 151 securities in its portfolio. The top 10 holdings constitute 26.7% of the fund’s assets. The fund meets the SEC requirement of being classified as a diversified fund. The fund is not considered to have an ESG focus with its investment selection and management.
Thornburg Limited Term US Government I is part of the Fixed Income global asset class and is within the Taxable Bond fund group. Thornburg Limited Term US Government I has 0.0% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 0.0%. There is 0.0% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 94.6% (94.6% domestic bond, 0.0% foreign bond and 0.0% convertible bond). Thornburg Limited Term US Government I has 5.4% of the portfolio in cash.
Assets Under Management
The fund has $39 million in total assets, which is below the $337 million average for the Government Mortgage-Backed Bond category. Normally, lower assets under management translates to higher average expense ratios, and greater total assets are desired. However, for some investment categories, such as small-cap investing, it may be difficult for the manager to fully employ the desired active strategy if assets grow too large or too quickly.
LTUIX Performance and Fees
The expense ratio measures how much of a fund’s assets are used for administrative expenses and operating expenses, including adviser fees and fees for the transfer agent and custodial services. The Thornburg Limited Term US Government I expense ratio is above average compared to funds in the Government Mortgage-Backed Bond category. Thornburg Limited Term US Government I has an expense ratio of 0.67%, which is 25% lower than its category average, making the fund expense ratio grade a C. While it is difficult to predict returns, it is known that high annual expense ratios reduce your rate of return, and excessive fees are difficult to overcome. Active management normally comes with higher expense ratios than passive index management. Certain investment categories such as small company and foreign also normally have higher expense ratios. It is best to compare fund expense ratios against the category averages for meaningful assessments.
High portfolio turnover can translate to higher expenses and lower aftertax returns. A portfolio turnover rate cannot be currently calculated for Thornburg Limited Term US Government I. By way of comparison, the average portfolio turnover is 367% for the Government Mortgage-Backed Bond category.
Recently, in the month of July 2026, Thornburg Limited Term US Government I returned -0.6%, which earned it a grade of A, as the Government Mortgage-Backed Bond category had an average return of -1.2%. The letter grades of A, B, C, D and F are based upon relative rankings within the investment category. A grade of A, for example, would indicate that the return is in the highest 20% for that time period compared to all funds in that category.
Thornburg Limited Term US Government I has a trailing yield of 3.05%, which is below the 3.87% category average. The fund normally distributes its income monthly and its capital gains annually.
It’s natural to seek the best-performing investments, but you must consider the relationship between risk and return and the impact of costs and taxes on your realized returns.
Thornburg Limited Term US Government I Grades
Year to date, the fund has returned 0.2%, 0.6 percentage points better than the category, which translates into a grade of A. The fund has returned 3.1% over the past year (grade of D), 4.1% over the past three years (grade of B) and 0.9% per year over the past five years (grade of A) and 1.3% per year over the past 10 years (grade of B).
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LTUIX Trailing NAV Total Returns Data as of 7/31/26
| Last Month |
Last Quarter |
Ann'l. 1Yr |
Ann'l. 3Yr |
Ann'l. 5Yr |
Ann'l. 10Yr |
|
| LTUIX Return (NAV) | -0.6% | -0.3% | 3.1% | 4.1% | 0.9% | 1.3% |
| LTUIX Grade | A | A | D | B | A | B |
| +/- Category | 0.6% | 0.6% | -0.2% | 0.3% | 0.8% | 0.3% |
| Government Mortgage-Backed Bond Avg | -1.2% | -0.9% | 3.4% | 3.8% | 0.1% | 1.0% |
| LTUIX Tax Cost Ratio | na | na | 1.2% | 1.2% | 1.1% | 0.9% |
LTUIX Annual NAV Total ReturnsData as of 7/31/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| LTUIX Return (NAV) | 0.2% | 6.8% | 2.7% | 4.3% | -7.8% | -1.6% | 4.1% | 3.9% | 1.1% | 0.9% | 1.3% |
| LTUIX Grade | A | F | A | D | A | D | C | F | A | D | C |
| +/- Category | 0.6% | -0.8% | 1.5% | -0.2% | 2.7% | -0.2% | -0.3% | -1.3% | 0.7% | -0.4% | -0.0% |
| Government Mortgage-Backed Bond Avg | -0.4% | 7.6% | 1.2% | 4.4% | -10.5% | -1.4% | 4.4% | 5.2% | 0.5% | 1.3% | 1.3% |
| Risk Measures | |
| Standard Deviation: | 3.8% |
| Total Risk Index: | 0.31 - Low |
| Category Risk Index: | 0.68 - Low |
| Category Risk Grade: | A (15% Rank) |
| Beta: | 0.67 |
| R-Squared: | 96% |
| Leveraged Fund: | No |
| Inverse Fund: | No |
| Portfolio Characteristics | |
| Equity Investment Style: | na |
| Bond Investment Style: | na |
| Yield: | 3.1% |
| Dividend Distribution: | Monthly |
| Cap Gains Distribution: | Annually |
| Total Assets: | $76 Mil |
| Fund Total Assets: | $ 39 Mil |
| Share Class Type: | Inst |
| Portfolio Turnover: | na |
Management Team
| Number of Managers: 2 | |||
| Longest Tenure: 11.5 years | |||
| Average Tenure: 7.5 years | |||
| Managers (Year): Erickson Lon (2015), Hoffmann Christian (2023) | |||
Portfolio Composition (as of 6/30/26)
| # of Holdings: | 151 |
| % in Top 10 Holdings: | 26.7% |
| Fund is Non-Diversified: | No |
| % in Foreign Issues: | 0.0% |
Portfolio Allocation |
|
| Domestic Stock: | 0.0% |
| Foreign Stock: | 0.0% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 94.6% |
| Foreign Bond: | 0.0% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 5.4% |
Purchase Information
| Fund Family: | Thornburg |
| Phone Number: | 800-847-0200 |
| Website: | www.thornburg.com |
| Status: | Open |
| Inception Date: | July 5, 1996 |
| Min. Initial Purchase: | $2,500,000 |
| Min. Initial IRA Purchase: | $ 0 |
| True No-Load: | Yes |
| Front Load Maximum: | 0.00% |
| Deferred Charge Maximum: | 0.00% |
| Redemption Charge Maximum: | 0.00% |
| 12b-1 Fee: | na |
Expenses and Fees | |
| Expense Ratio (%): | 0.67% ( Rating : Above Avg ) |
| Category Average Expense Ratio (%): | 0.89% |
| Share Class: | Thornburg Limited Term US Government A |
| Min. Subsequent Purchase: | $ 100 |
| Min. Subsequent IRA Purchase: | $ 0 |
