American Century High Yield Municipal Fund Class A (AYMAX)

Fund Assets	513.25M
Expense Ratio	0.85%
Min. Investment	$2,500
Turnover	49.00%
Dividend (ttm)	0.36
Dividend Yield	4.33%
Dividend Growth	0.19%
Payout Frequency	Monthly
Ex-Dividend Date	Sep 30, 2026

Previous Close	8.17
YTD Return	-2.33%
1-Year Return	-1.30%
5-Year Return	-3.03%
52-Week Low	8.07
52-Week High	8.86
Beta (5Y)	0.12
Holdings	419
Inception Date	Jan 31, 2003

About AYMAX

American Century High Yield Municipal Fund Class A is a mutual fund designed to generate a high level of current income that is generally exempt from federal income taxes. Its primary focus is on investing in high-yield municipal bonds—debt securities issued by states, municipalities, and their agencies that carry ratings below investment grade. The fund aims to provide attractive income potential, while also offering the benefit of tax-exempt distributions, making it particularly relevant for investors seeking tax-advantaged income streams. Although capital appreciation is a secondary goal, the primary objective remains current income. This fund is diversified, typically holding hundreds of municipal securities across various sectors and regions, which helps manage credit and market risks. The portfolio is actively managed by a dedicated team that seeks to balance income generation with risk oversight, given the higher default and liquidity risks associated with lower-rated municipal issuers. It serves an important role in the financial market by supporting infrastructure and public projects through municipal financing while offering investors a way to access tax-free yield within a managed product.

• Fund Family: American Century Investments
• Category: High Yield Muni
• Performance Rating: Average
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: AYMAX
• Share Class: A Class
• Index: Index is not available on Lipper Database

Performance

AYMAX had a total return of -1.30% in the past year, including dividends. Since the fund's inception, the average annual return has been 3.27%.

Other Share Classes

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

Symbol	Share Class	Expense Ratio
AYMYX	Y Class	0.37%
AYMIX	I Class	0.40%
ABHYX	Investor Class	0.60%
AYMCX	C Class	1.60%

Dividend History

Ex-Dividend	Amount	Pay Date
Sep 30, 2026	$0.03036	Sep 30, 2026
Aug 31, 2026	$0.02832	Aug 31, 2026
Jul 31, 2026	$0.03163	Jul 31, 2026
Jun 30, 2026	$0.02884	Jun 30, 2026
May 29, 2026	$0.02834	May 29, 2026
Apr 30, 2026	$0.02879	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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