APISX — Short Duration Inflation Protection Bond Fund
Data updated: 2026-08-28
APISX — Short Duration Inflation Protection Bond Fund. Short Treasury / Sovereign Bond · $1.16B AUM. Holdings, fees, performance and SEC filings.
APISX Fund Overview
APISX — Short Duration Inflation Protection Bond Fund is a US mutual fund managed by American Century Investment 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 Investment Trust
- Category: Short Treasury / Sovereign Bond
- Assets under management: $1.16B
- 1-year return: 3.4%
- Ticker: APISX
- SEC CIK: 0000908406
- SEC series ID: S000006581
- Share class ID: C000017970
APISX Holdings
Top 10 holdings of Short Duration Inflation Protection Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Treasury Inflation Indexed Bonds | 13.72% |
| United States Treasury Inflation Indexed Bonds | 10.54% |
| United States Treasury Inflation Indexed Bonds | 9.88% |
| United States Treasury Inflation Indexed Bonds | 6.38% |
| United States Treasury Inflation Indexed Bonds | 5.38% |
| United States Treasury Inflation Indexed Bonds | 4.93% |
| United States Treasury Inflation Indexed Bonds | 4.88% |
| United States Treasury Inflation Indexed Bonds | 4.45% |
| U.s. Treasury | 4.29% |
| United States Treasury Inflation Indexed Bonds | 2.80% |
APISX Portfolio Allocation
Asset-class allocation of Short Duration Inflation Protection Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 85.7% |
| Securitized | 8.3% |
| Cash & Equivalents | 3.8% |
| Equity | 2.0% |
| Derivatives | 0.2% |
APISX Performance
Total returns for APISX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 1.6% |
| 1 year | 3.4% |
| 3 years (annualised) | 5.1% |
| 5 years (annualised) | 3.1% |
APISX Risk Information
Risk metrics for APISX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 1.8%
APISX Costs and Fees
APISX costs about $39 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.39%
- Gross expense ratio: 0.39%
- Portfolio turnover: 59%
- Brokerage commissions: 0.28 bps of average net assets (SEC N-CEN)
APISX Cashflows
Over the 12 months to 2026-06, Short Duration Inflation Protection Bond Fund had net outflows of $379.09M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$21.82M |
| 2026-05 | −$690.57K |
| 2026-04 | −$409.44K |
| 2026-03 | −$248.89M |
| 2026-02 | −$23.07M |
| 2026-01 | −$17.91M |
APISX Debt Constituents
Largest debt holdings of Short Duration Inflation Protection Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury Inflation Indexed Bonds | 13.72% |
| United States Treasury Inflation Indexed Bonds | 10.54% |
| United States Treasury Inflation Indexed Bonds | 9.88% |
| United States Treasury Inflation Indexed Bonds | 6.38% |
| United States Treasury Inflation Indexed Bonds | 5.38% |
| United States Treasury Inflation Indexed Bonds | 4.93% |
| United States Treasury Inflation Indexed Bonds | 4.88% |
| United States Treasury Inflation Indexed Bonds | 4.45% |
| U.s. Treasury | 4.29% |
| United States Treasury Inflation Indexed Bonds | 2.80% |
APISX Prospectus and SEC Filings
Official Short Duration Inflation Protection Bond 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.