TWUOX — Short-Term Government Fund
Data updated: 2026-08-28
TWUOX — Short-Term Government Fund. Short Treasury / Sovereign Bond · $181.19M AUM · 0.35% expense ratio. Holdings, fees, performance and SEC filings.
TWUOX Fund Overview
TWUOX — 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: $181.19M
- 1-year return: 2.8%
- Ticker: TWUOX
- SEC CIK: 0000773674
- SEC series ID: S000005970
- Share class ID: C000088040
TWUOX 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 | 7.22% |
| U.s. Treasury | 6.50% |
| U.s. Treasury | 4.34% |
| U.s. Treasury | 3.85% |
| U.s. Treasury | 3.41% |
| U.s. Treasury | 3.06% |
| U.s. Treasury | 2.95% |
| U.s. Treasury | 2.94% |
| U.s. Treasury | 2.88% |
| State of California | 2.61% |
TWUOX 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 | 55.7% |
| Securitized | 41.8% |
| Cash & Equivalents | 2.3% |
TWUOX Performance
Total returns for TWUOX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.7% |
| 1 year | 2.8% |
| 3 years (annualised) | 4.3% |
| 5 years (annualised) | 1.8% |
TWUOX Risk Information
Risk metrics for TWUOX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 1.1%
TWUOX Costs and Fees
TWUOX costs about $35 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.35%
- Gross expense ratio: 0.35%
- Portfolio turnover: 210%
- Brokerage commissions: 0.23 bps of average net assets (SEC N-CEN)
TWUOX Cashflows
Over the 12 months to 2026-06, Short-Term Government Fund had net outflows of $21.77M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$2.53M |
| 2026-05 | −$421.13K |
| 2026-04 | −$3.12M |
| 2026-03 | −$5.03M |
| 2026-02 | −$1.68M |
| 2026-01 | $5.96M |
TWUOX 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 | 7.22% |
| U.s. Treasury | 6.50% |
| U.s. Treasury | 4.34% |
| U.s. Treasury | 3.85% |
| U.s. Treasury | 3.41% |
| U.s. Treasury | 3.06% |
| U.s. Treasury | 2.95% |
| U.s. Treasury | 2.94% |
| U.s. Treasury | 2.88% |
| State of California | 2.61% |
TWUOX Prospectus and SEC Filings
Official Short-Term Government Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-07-29
- Prospectus (485BPOS) — filed 2025-07-29
- Prospectus (485BPOS) — filed 2024-07-29
- Portfolio holdings (N-PORT) — filed 2026-08-28
- Portfolio holdings (N-PORT) — filed 2026-05-29
- Portfolio holdings (N-PORT) — filed 2026-02-27
- Annual census (N-CEN) — filed 2026-06-11
- Annual census (N-CEN) — filed 2025-06-11
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.