ADFIX — Diversified Bond Fund
Data updated: 2026-08-28
ADFIX — Diversified Bond Fund. Long Total / Aggregate Bond · $3.99B AUM · 0.60% expense ratio · 3.8% 1-yr return. Holdings, fees, performance and SEC filings.
ADFIX Fund Overview
ADFIX — Diversified Bond Fund is a US mutual fund managed by American Century Investment Trust, categorised as Long 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: Long Total / Aggregate Bond
- Assets under management: $3.99B
- 1-year return: 3.8%
- Ticker: ADFIX
- SEC CIK: 0000908406
- SEC series ID: S000006579
- Share class ID: C000017955
ADFIX Holdings
Top 10 holdings of Diversified Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| U.s. Treasury | 2.42% |
| U.s. Treasury | 2.21% |
| Fannie Mae Pool | 2.19% |
| Federal National Mortgage Association | 2.00% |
| U.s. Treasury | 1.97% |
| U.s. Treasury | 1.53% |
| U.s. Treasury | 1.41% |
| U.s. Treasury | 1.38% |
| U.s. Treasury | 1.27% |
| U.s. Treasury | 1.18% |
ADFIX Portfolio Allocation
Asset-class allocation of Diversified Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 49.2% |
| Securitized | 46.9% |
| Equity | 4.4% |
| Cash & Equivalents | 2.1% |
| Loans | 0.4% |
| Real Estate | 0.2% |
ADFIX Performance
Total returns for ADFIX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.7% |
| 1 year | 3.8% |
| 3 years (annualised) | 4.1% |
| 5 years (annualised) | -0.1% |
ADFIX Risk Information
Risk metrics for ADFIX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.0%
ADFIX Costs and Fees
ADFIX costs about $60 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.60%
- Gross expense ratio: 0.60%
- Portfolio turnover: 161%
- Brokerage commissions: 0.60 bps of average net assets (SEC N-CEN)
ADFIX Cashflows
Over the 12 months to 2026-06, Diversified Bond Fund had net outflows of $1.40B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$13.93M |
| 2026-05 | $62.15M |
| 2026-04 | $4.37M |
| 2026-03 | −$213.91M |
| 2026-02 | −$277.89M |
| 2026-01 | −$32.08M |
ADFIX Debt Constituents
Largest debt holdings of Diversified Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| U.s. Treasury | 2.42% |
| U.s. Treasury | 2.21% |
| U.s. Treasury | 1.97% |
| U.s. Treasury | 1.53% |
| U.s. Treasury | 1.41% |
| U.s. Treasury | 1.38% |
| U.s. Treasury | 1.27% |
| U.s. Treasury | 1.18% |
| U.s. Treasury | 1.04% |
| U.s. Treasury | 0.96% |
ADFIX Prospectus and SEC Filings
Official Diversified 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 Long 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.