AMUSX Performance — U.S. Government Securities Fund, Class A
Data updated: 2026-07-29
AMUSX returned −0.28% year to date and +4.01% over one year to May 2026. Annualised returns are +2.99% over 3 years and −0.04% over 5 years. The fund trailed its Intermediate Government Bond category average: $100 invested three years ago grew to $109, against $112 for the category, and to $104 over one year, against $105. Volatility over the past three years was 5.51% a year. In the 12 months to May 2026 the fund took in a net $1.9B, and assets reached $24.25B.
AMUSX Growth of $100
What $100 invested in U.S. Government Securities Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Government Bond category average over the same months.
| Period | AMUSX | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $104 | $105 |
| 3 years (Jun 2023 – May 2026) | $109 | $112 |
| 5 years (Jun 2021 – May 2026) | $100 | $104 |
| Since data start (Sep 2019 – May 2026) | $107 | $111 |
AMUSX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | −0.28% |
| 1 year | +4.01% |
| 3 years (annualised) | +2.99% |
| 5 years (annualised) | −0.04% |
AMUSX Annual Returns
Calendar-year total returns of U.S. Government Securities Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | −0.28% |
| 2025 | +7.53% |
| 2024 | +0.62% |
| 2023 | +2.77% |
| 2022 | −11.01% |
| 2021 | −0.85% |
| 2020 | +9.44% |
| 2019 (Sep–Dec) | −0.53% |
AMUSX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +0.1% | +1.5% | −1.8% | 0.0% | 0.0% | — | — | — | — | — | — | — |
| 2025 | +0.6% | +2.3% | +0.4% | +1.1% | −1.2% | +1.5% | −0.6% | +1.6% | +0.6% | +0.5% | +0.7% | −0.1% |
| 2024 | −0.1% | −1.7% | +0.6% | −2.6% | +1.7% | +1.0% | +2.4% | +1.5% | +1.3% | −2.8% | +0.8% | −1.2% |
| 2023 | +2.4% | −2.4% | +2.9% | +0.3% | −1.5% | −1.3% | −0.3% | −0.5% | −2.4% | −1.4% | +4.2% | +3.1% |
| 2022 | −1.3% | 0.0% | −2.5% | −2.9% | +0.4% | −1.2% | +2.4% | −2.8% | −4.7% | −1.2% | +3.1% | −0.6% |
| 2021 | −0.5% | −1.2% | −1.1% | +0.7% | +0.2% | +0.5% | +1.1% | −0.1% | −0.4% | 0.0% | +0.5% | −0.3% |
| 2020 | +1.6% | +2.3% | +3.6% | +0.8% | −0.1% | +0.2% | +0.9% | −0.6% | +0.1% | −0.4% | +0.5% | +0.1% |
| 2019 | — | — | — | — | — | — | — | — | −0.5% | +0.3% | −0.2% | −0.1% |
AMUSX Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 5.51%
- 3-year Sharpe ratio: -0.27 (vs 4.5% risk-free rate)
- Best month: +4.22% (Nov 2023)
- Worst month: −2.84% (Oct 2024)
AMUSX Fund Flows
Monthly money in and out of U.S. Government Securities Fund, from SEC Form N-PORT.
- 12-month net flow: $1.9B
- 12-month gross sales (incl. reinvestments): $5.5B
- Sales ÷ redemptions: 1.51×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $491.5M | $200.3M | $291.2M |
| Apr 2026 | $986.8M | $274.7M | $712.1M |
| Mar 2026 | $277.2M | $975.4M | −$698.2M |
| Feb 2026 | $214.4M | $225.9M | −$11.5M |
| Jan 2026 | $966.7M | $538.0M | $428.8M |
| Dec 2025 | $457.7M | $210.0M | $247.7M |
| Nov 2025 | $215.4M | $229.1M | −$13.7M |
| Oct 2025 | $307.8M | $221.0M | $86.8M |
| Sep 2025 | $409.5M | $175.8M | $233.8M |
| Aug 2025 | $339.4M | $279.1M | $60.2M |
| Jul 2025 | $402.8M | $156.7M | $246.1M |
| Jun 2025 | $427.6M | $154.5M | $273.1M |
AMUSX Assets Under Management
Net assets of U.S. Government Securities Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $24.25B |
| 2026-02-28 | $24.65B |
| 2025-11-30 | $23.85B |
| 2025-08-31 | $23.35B |
| 2025-05-31 | $22.45B |
| 2025-02-28 | $23.11B |
| 2024-11-30 | $22.46B |
| 2024-08-31 | $22.15B |
| 2024-05-31 | $21.05B |
| 2024-02-29 | $20.51B |
| 2023-11-30 | $19.30B |
| 2023-08-31 | $19.04B |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.