TWUSX — Short-Term Government Fund
Data updated: 2026-06-11
TWUSX — Short-Term Government Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Short Treasury / Sovereign Bond · $188.47M AUM · 0.54% expense ratio · 3.8% 1-yr return. From SEC regulatory filings.
TWUSX Fund Overview
TWUSX — Short-Term Government Fund is a US mutual fund managed by American Century Government Income Trust, categorised as Short Treasury / Sovereign Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: American Century Government Income Trust
- Category: Short Treasury / Sovereign Bond
- Assets under management: $188.47M
- 1-year return: 3.8%
- Ticker: TWUSX
- SEC CIK: 0000773674
- SEC series ID: S000005970
- Share class ID: C000016440
TWUSX Holdings
Top 10 holdings of Short-Term Government Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| U.s. Treasury | 11.69% |
| U.s. Treasury | 7.01% |
| U.s. Treasury | 5.51% |
| U.s. Treasury | 5.07% |
| U.s. Treasury | 4.84% |
| U.s. Treasury | 3.99% |
| U.s. Treasury | 3.44% |
| U.s. Treasury | 2.87% |
| U.s. Treasury | 2.86% |
| State of California | 2.52% |
TWUSX Portfolio Allocation
Asset-class allocation of Short-Term Government Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 60.3% |
| Securitized | 38.0% |
| Cash & Equivalents | 1.5% |
TWUSX Performance
Total returns for TWUSX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.3% |
| 1 year | 3.8% |
| 3 years (annualised) | 3.6% |
| 5 years (annualised) | 1.6% |
TWUSX Risk Information
Risk metrics for TWUSX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 1.3%
TWUSX Costs and Fees
TWUSX costs about $54 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.54%
- Gross expense ratio: 0.54%
- Portfolio turnover: 298%
- Brokerage commissions: 0.23 bps of average net assets (SEC N-CEN)
TWUSX Cashflows
Over the 12 months to 2026-03, Short-Term Government Fund had net outflows of $20.26M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$5.03M |
| 2026-02 | −$1.68M |
| 2026-01 | $5.96M |
| 2025-12 | −$4.18M |
| 2025-11 | −$3.89M |
| 2025-10 | −$1.16M |
TWUSX Debt Constituents
Largest debt holdings of Short-Term Government Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| U.s. Treasury | 11.69% |
| U.s. Treasury | 7.01% |
| U.s. Treasury | 5.51% |
| U.s. Treasury | 5.07% |
| U.s. Treasury | 4.84% |
| U.s. Treasury | 3.99% |
| U.s. Treasury | 3.44% |
| U.s. Treasury | 2.87% |
| U.s. Treasury | 2.86% |
| State of California | 2.52% |
TWUSX Prospectus and SEC Filings
Official Short-Term Government Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Short Treasury / Sovereign Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.