American Century Short Duration Fund R6 CLASS (ASDDX)
| Fund Assets | 1.04B |
| Expense Ratio | 0.32% |
| Min. Investment | $2,500 |
| Turnover | 272.00% |
| Dividend (ttm) | 0.47 |
| Dividend Yield | 4.73% |
| Dividend Growth | -1.91% |
| Payout Frequency | Monthly |
| Ex-Dividend Date | Jan 30, 2026 |
| Previous Close | 9.88 |
| YTD Return | 0.48% |
| 1-Year Return | 5.95% |
| 5-Year Return | 13.79% |
| 52-Week Low | 9.33 |
| 52-Week High | 9.88 |
| Beta (5Y) | n/a |
| Holdings | 317 |
| Inception Date | Jul 28, 2017 |
About ASDDX
American Century Short Duration Fund R6 is an actively managed short-term bond mutual fund designed to maximize total return with a secondary goal of delivering a high level of current income. The strategy emphasizes **investment‑grade** debt and holds a diversified mix of U.S. Treasuries, agencies, corporate bonds, commercial paper, and other high-quality fixed-income instruments, with a focus on **short effective duration** to help limit price volatility as interest rates change. The fund is positioned within the **Short‑Term Bond** category and targets securities generally in the one‑ to three‑year maturity range, aligning its risk profile with conservative income objectives. It distributes income **monthly** and is managed within the American Century lineup’s institutional R6 share class, which features a comparatively **low net expense ratio** for cost efficiency. The portfolio’s mandate to keep at least a majority in investment‑grade, non–money market debt supports capital preservation while seeking incremental yield over cash. In employer-sponsored retirement plans, it can serve as a **core short-duration fixed-income holding** for liquidity needs, ballast against equity volatility, and diversification of interest-rate and credit exposures.
Performance
ASDDX had a total return of 5.95% in the past year, including dividends. Since the fund's inception, the average annual return has been -0.45%.
Equivalent Funds
These are funds that follow the same index from the other major fund companies.
| Symbol | Provider | Name | Expense Ratio |
|---|---|---|---|
| FBNTX | Fidelity | Fidelity Advisor Short-Term Bond Fund - Class M | 0.51% |
| FBNAX | Fidelity | Fidelity Advisor Short-Term Bond Fund - Class A | 0.50% |
| FBNIX | Fidelity | Fidelity Advisor Short-Term Bond Fund - Class I | 0.30% |
| FANCX | Fidelity | Fidelity Advisor Short-Term Bond Fund - Class C | 1.36% |
| FIKTX | Fidelity | Fidelity Advisor Short-Term Bond Fund - Class Z | 0.25% |
Top 10 Holdings
26.83% of assets| Name | Symbol | Weight |
|---|---|---|
| United States Treasury Notes 3.875% | T.3.875 06.15.28 | 8.51% |
| United States Treasury Notes 3.5% | T.3.5 11.15.28 | 5.06% |
| Usd | n/a | 4.17% |
| United States Treasury Notes 3.75% | T.3.75 12.31.28 | 2.10% |
| United States Treasury Notes 3.5% | T.3.5 10.31.27 | 1.69% |
| Fremf 2012 Kf01 Mortgage Trust 4.25758% | FREMF.2016-K54 B | 1.56% |
| United States Treasury Notes 3.375% | T.3.375 09.15.28 | 1.19% |
| Fremf 2012 Kf01 Mortgage Trust 4.31162% | FREMF.2016-K55 B | 1.09% |
| Federal Home Loan Mortgage Corp. 2.282% | FHMS.K736 A2 | 0.80% |
| Home Depot Inc. 5.15% | HD.5.15 06.25.26 | 0.66% |
Dividend History
| Ex-Dividend | Amount | Pay Date |
|---|---|---|
| Jan 30, 2026 | $0.03728 | Jan 30, 2026 |
| Dec 31, 2025 | $0.03954 | Dec 31, 2025 |
| Nov 28, 2025 | $0.03448 | Nov 28, 2025 |
| Oct 31, 2025 | $0.0403 | Oct 31, 2025 |
| Sep 30, 2025 | $0.03677 | Sep 30, 2025 |
| Aug 29, 2025 | $0.0414 | Aug 29, 2025 |