American Century Short Duration R6 (ASDDX)

Fund Assets	969.96M
Expense Ratio	0.334%
Min. Investment	$2,500
Turnover	197.00%
Dividend (ttm)	0.44
Dividend Yield	4.59%
Dividend Growth	-7.67%
Payout Frequency	Monthly
Ex-Dividend Date	Sep 30, 2026

Previous Close	9.63
YTD Return	0.78%
1-Year Return	1.94%
5-Year Return	10.96%
52-Week Low	9.62
52-Week High	9.88
Beta (5Y)	0.06
Holdings	287
Inception Date	Jul 28, 2017

About ASDDX

American Century Short Duration Fund R6 is a mutual fund in the short-term bond category designed to maximize total return while seeking a high level of income as a secondary objective. It invests at least 65% of its assets in investment-grade, non-money market debt securities, including fixed-income instruments such as notes, bonds, commercial paper, and U.S. Treasury securities. This focus on short-duration holdings aims to provide stability and income generation within the fixed-income market, tracking benchmarks like the Bloomberg 1-3 Year Government/Credit Bond Index. The R6 share class targets group employer-sponsored retirement plans, offering access to this strategy through institutional channels. Managed by American Century Investments, the fund emphasizes below-average risk profiles and above-average performance ratings in its peer group, making it a component of diversified portfolios seeking conservative bond exposure with potential for enhanced returns over cash equivalents.

• Fund Family: American Century Investments
• Category: Short-Term Bond
• Performance Rating: Average
• Risk Rating: Below Average
• Stock Exchange: Nasdaq
• Ticker Symbol: ASDDX
• Share Class: R6 Class
• Index: Bloomberg 1-3 Y Government/Credit TR

Performance

ASDDX had a total return of 1.94% in the past year, including dividends. Since the fund's inception, the average annual return has been 2.38%.

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 Bd M	0.52%
FBNAX	Fidelity	Fidelity Advisor Short-Term Bd A	0.49%
FBNIX	Fidelity	Fidelity Advisor Short-Term Bd I	0.29%
FANCX	Fidelity	Fidelity Advisor Short-Term Bd C	1.40%
FIKTX	Fidelity	Fidelity Advisor Short-Term Bond Z	0.24%

Other Share Classes

These are alternative share classes of the same fund, from the same provider.

Symbol	Share Class	Expense Ratio
ASDOX	G Class	0.01%
ACSUX	R5 Class	0.37%
ASHHX	I Class	0.47%
ACSNX	Investor Class	0.57%

Top 10 Holdings

33.01% of assets

Name	Symbol	Weight
U.S. TREASURY - United States Treasury Note/Bond 3.50 03/15/2029	T	8.06%
U.S. TREASURY - United States Treasury Note/Bond 3.88 06/15/2028	T	6.78%
State Street Instl US Govt MMkt Premier	GVMXX	3.49%
U.S. TREASURY - United States Treasury Note/Bond 3.75 03/31/2028	T	2.95%
U.S. TREASURY - United States Treasury Note/Bond 3.50 09/15/2028	T	2.67%
U.S. TREASURY - United States Treasury Note/Bond 4.13 06/15/2029	T	2.17%
U.S. TREASURY - United States Treasury Note/Bond 4.63 09/30/2028	T	2.00%
U.S. TREASURY - United States Treasury Note/Bond 3.88 07/31/2027	T	1.97%
U.S. TREASURY - United States Treasury Note/Bond 3.50 02/15/2029	T	1.60%
U.S. TREASURY - United States Treasury Note/Bond 3.38 02/29/2028	T	1.32%

Dividend History

Ex-Dividend	Amount	Pay Date
Sep 30, 2026	$0.036	Sep 30, 2026
Aug 31, 2026	$0.03398	Aug 31, 2026
Jul 31, 2026	$0.03825	Jul 31, 2026
Jun 30, 2026	$0.0354	Jun 30, 2026
May 29, 2026	$0.03577	May 29, 2026
Apr 30, 2026	$0.03707	Apr 30, 2026

Data Sources: Tiingo, Twelve Data, and more

Historical data is provided by Tiingo. Delayed stock pricing data is provided by Twelve Data. Several fund data points are also provided by Finnhub.

Last checked:

Oct 16, 2026

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