AMUSX vs. LTUSX
Compare and contrast key facts about American Funds U.S. Government Securities Fund (AMUSX) and Thornburg Limited Term U.S. Government Fund (LTUSX).
AMUSX is managed by American Funds. It was launched on Oct 16, 1985. LTUSX is managed by Thornburg. It was launched on Nov 15, 1987.
Performance
AMUSX vs. LTUSX - Performance Comparison
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AMUSX vs. LTUSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AMUSX American Funds U.S. Government Securities Fund | -0.80% | 7.55% | 0.63% | 2.79% | -11.50% | -0.84% | 9.44% | 5.03% | 0.64% | 1.54% |
LTUSX Thornburg Limited Term U.S. Government Fund | 0.37% | 6.40% | 2.40% | 3.40% | -8.06% | -1.82% | 3.77% | 3.61% | 0.98% | 0.60% |
Returns By Period
In the year-to-date period, AMUSX achieves a -0.80% return, which is significantly lower than LTUSX's 0.37% return. Over the past 10 years, AMUSX has outperformed LTUSX with an annualized return of 1.11%, while LTUSX has yielded a comparatively lower 1.03% annualized return.
AMUSX
- 1D
- 0.59%
- 1M
- -2.29%
- YTD
- -0.80%
- 6M
- 0.26%
- 1Y
- 3.32%
- 3Y*
- 2.41%
- 5Y*
- -0.07%
- 10Y*
- 1.11%
LTUSX
- 1D
- 0.33%
- 1M
- -1.60%
- YTD
- 0.37%
- 6M
- 1.36%
- 1Y
- 4.15%
- 3Y*
- 3.46%
- 5Y*
- 0.75%
- 10Y*
- 1.03%
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AMUSX vs. LTUSX - Expense Ratio Comparison
AMUSX has a 0.61% expense ratio, which is lower than LTUSX's 0.92% expense ratio.
Return for Risk
AMUSX vs. LTUSX — Risk / Return Rank
AMUSX
LTUSX
AMUSX vs. LTUSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Funds U.S. Government Securities Fund (AMUSX) and Thornburg Limited Term U.S. Government Fund (LTUSX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| AMUSX | LTUSX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.83 | 1.38 | -0.55 |
Sortino ratioReturn per unit of downside risk | 1.25 | 2.00 | -0.76 |
Omega ratioGain probability vs. loss probability | 1.15 | 1.25 | -0.10 |
Calmar ratioReturn relative to maximum drawdown | 1.52 | 2.47 | -0.95 |
Martin ratioReturn relative to average drawdown | 4.40 | 7.64 | -3.24 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| AMUSX | LTUSX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.83 | 1.38 | -0.55 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.01 | 0.19 | -0.20 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.23 | 0.34 | -0.11 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.83 | 1.15 | -0.32 |
Correlation
The correlation between AMUSX and LTUSX is 0.82, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
AMUSX vs. LTUSX - Dividend Comparison
AMUSX's dividend yield for the trailing twelve months is around 3.63%, more than LTUSX's 2.32% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AMUSX American Funds U.S. Government Securities Fund | 3.63% | 3.97% | 4.19% | 3.44% | 2.01% | 1.05% | 4.92% | 2.79% | 1.72% | 1.32% | 2.30% | 2.84% |
LTUSX Thornburg Limited Term U.S. Government Fund | 2.32% | 2.69% | 2.62% | 1.89% | 1.63% | 1.21% | 1.35% | 1.77% | 1.90% | 1.45% | 2.52% | 1.50% |
Drawdowns
AMUSX vs. LTUSX - Drawdown Comparison
The maximum AMUSX drawdown since its inception was -17.48%, which is greater than LTUSX's maximum drawdown of -12.34%. Use the drawdown chart below to compare losses from any high point for AMUSX and LTUSX.
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Drawdown Indicators
| AMUSX | LTUSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.48% | -12.34% | -5.14% |
Max Drawdown (1Y)Largest decline over 1 year | -2.94% | -2.00% | -0.94% |
Max Drawdown (5Y)Largest decline over 5 years | -16.84% | -11.69% | -5.15% |
Max Drawdown (10Y)Largest decline over 10 years | -17.48% | -12.34% | -5.14% |
Current DrawdownCurrent decline from peak | -3.68% | -1.60% | -2.08% |
Average DrawdownAverage peak-to-trough decline | -2.75% | -1.40% | -1.35% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.02% | 0.65% | +0.37% |
Volatility
AMUSX vs. LTUSX - Volatility Comparison
American Funds U.S. Government Securities Fund (AMUSX) has a higher volatility of 1.60% compared to Thornburg Limited Term U.S. Government Fund (LTUSX) at 1.24%. This indicates that AMUSX's price experiences larger fluctuations and is considered to be riskier than LTUSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AMUSX | LTUSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.60% | 1.24% | +0.36% |
Volatility (6M)Calculated over the trailing 6-month period | 2.49% | 1.99% | +0.50% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.57% | 3.29% | +1.28% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.01% | 3.99% | +2.02% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.83% | 3.06% | +1.77% |