ACSKX — Short Duration Fund
Data updated: 2026-06-11
ACSKX — Short Duration Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Intermediate Total / Aggregate Bond · $1.00B AUM · 1.56% expense ratio · 3.4% 1-yr return. From SEC regulatory filings.
ACSKX Fund Overview
ACSKX — Short Duration Fund is a US mutual fund managed by American Century Investment Trust, categorised as Intermediate Total / Aggregate 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 Investment Trust
- Category: Intermediate Total / Aggregate Bond
- Assets under management: $1.00B
- 1-year return: 3.4%
- Ticker: ACSKX
- SEC CIK: 0000908406
- SEC series ID: S000014385
- Share class ID: C000039175
ACSKX Holdings
Top 10 holdings of Short Duration Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| U.s. Treasury | 8.20% |
| U.s. Treasury | 6.72% |
| State Street Institutional US Government Money Market Fund | 5.00% |
| U.s. Treasury | 2.32% |
| U.s. Treasury | 1.97% |
| U.s. Treasury | 1.80% |
| U.s. Treasury | 1.40% |
| U.s. Treasury | 1.06% |
| U.s. Treasury | 1.05% |
| U.s. Treasury | 0.79% |
ACSKX Portfolio Allocation
Asset-class allocation of Short Duration Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 58.2% |
| Securitized | 28.2% |
| Equity | 8.1% |
| Cash & Equivalents | 5.0% |
ACSKX Performance
Total returns for ACSKX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.0% |
| 1 year | 3.4% |
| 3 years (annualised) | 3.5% |
| 5 years (annualised) | 1.2% |
ACSKX Risk Information
Risk metrics for ACSKX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 1.2%
ACSKX Costs and Fees
ACSKX costs about $156 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.56%
- Gross expense ratio: 1.56%
- Portfolio turnover: 272%
- Brokerage commissions: 0.85 bps of average net assets (SEC N-CEN)
ACSKX Cashflows
Over the 12 months to 2026-03, Short Duration Fund had net outflows of $142.34M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$28.22M |
| 2026-02 | −$1.04M |
| 2026-01 | −$6.32M |
| 2025-12 | −$20.70M |
| 2025-11 | −$14.53M |
| 2025-10 | −$21.24M |
ACSKX Debt Constituents
Largest debt holdings of Short Duration Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| U.s. Treasury | 8.20% |
| U.s. Treasury | 6.72% |
| U.s. Treasury | 2.32% |
| U.s. Treasury | 1.97% |
| U.s. Treasury | 1.80% |
| U.s. Treasury | 1.40% |
| U.s. Treasury | 1.06% |
| U.s. Treasury | 1.05% |
| U.s. Treasury | 0.79% |
| U.s. Treasury | 0.61% |
ACSKX Prospectus and SEC Filings
Official Short Duration Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Intermediate Total / Aggregate 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.