American Century Inflation Adjs Bond R (AIARX)

Fund Assets	1.89B
Expense Ratio	1.00%
Min. Investment	$2,500
Turnover	44.00%
Dividend (ttm)	0.36
Dividend Yield	3.50%
Dividend Growth	-1.51%
Payout Frequency	Semi-Annual
Ex-Dividend Date	Jun 9, 2026

Previous Close	10.22
YTD Return	-1.87%
1-Year Return	-2.66%
5-Year Return	-4.52%
52-Week Low	10.17
52-Week High	10.93
Beta (5Y)	0.10
Holdings	152
Inception Date	Mar 1, 2010

About AIARX

The American Century Inflation-Adjusted Bond Fund R Class is a mutual fund focused on delivering total returns while helping protect against inflation. This fund primarily invests in inflation-linked debt securities, with a significant portion of its assets allocated to U.S. Treasury Inflation-Protected Securities (TIPS) and other government-issued inflation-indexed bonds. By adjusting principal values in line with the Consumer Price Index, these securities are structured to maintain purchasing power during periods of rising prices, addressing a core concern for retirement plans and long-term savers. The portfolio's holdings are diversified across 169 fixed income securities, with the top ten accounting for around 36% of assets. The fund maintains high credit quality and moderate interest rate sensitivity, and typically does not invest in equities or foreign bonds. Designed for employer-sponsored retirement plans, this share class allows groups to leverage institutional pricing and automated investment services. As an inflation-protected bond fund, it plays a specialized role in the market, serving as a hedge against inflationary risks while aiming for steady, real returns in both stable and fluctuating economic environments.

• Fund Family: American Century Investments
• Category: Inflation-Protected Bond
• Performance Rating: Below Average
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: AIARX
• Share Class: R Class
• Index: Bloomberg U.S. TIPS TR

Performance

AIARX had a total return of -2.66% in the past year, including dividends. Since the fund's inception, the average annual return has been 1.91%.

Equivalent Funds

These are funds that follow the same index from the other major fund companies.

Symbol	Provider	Name	Expense Ratio
SWRSX	Schwab	Schwab Treasury Inflation Protected Securities Index Fund	0.05%
VIPSX	Vanguard	Vanguard Inflation-Protected Securities Fund Investor Shares	0.20%
FIPDX	Fidelity	Fidelity Inflation-Protected Bond Index Fund	0.05%

Other Share Classes

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

Symbol	Share Class	Expense Ratio
AINGX	G Class	0.06%
AIADX	R6 Class	0.27%
AIANX	R5 Class	0.32%
AIAYX	Y Class	0.32%

Dividend History

Ex-Dividend	Amount	Pay Date
Jun 9, 2026	$0.1569	Jun 9, 2026
Dec 16, 2025	$0.2018	Dec 16, 2025
Jun 24, 2025	$0.1988	Jun 24, 2025
Dec 17, 2024	$0.1654	Dec 17, 2024
Jun 18, 2024	$0.0082	Jun 18, 2024
Dec 19, 2023	$0.3102	Dec 19, 2023

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 15, 2026

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