American Century Heritage Y (ATHYX)

Fund Assets	5.19B
Expense Ratio	0.663%
Min. Investment	$2,500
Turnover	62.00%
Dividend (ttm)	n/a
Dividend Yield	n/a
Dividend Growth	n/a
Payout Frequency	Annual
Ex-Dividend Date	Dec 16, 2025

Previous Close	26.91
YTD Return	1.76%
1-Year Return	-1.78%
5-Year Return	21.02%
52-Week Low	23.06
52-Week High	32.22
Beta (5Y)	1.10
Holdings	86
Inception Date	Apr 10, 2017

About ATHYX

American Century Heritage Fund Y Class is a mutual fund focused on mid-cap growth equities. Its primary objective is to achieve long-term capital growth by investing predominantly in medium-sized companies with accelerating earnings and revenue growth. The fund employs a fundamental, bottom-up stock selection process, favoring firms the management team believes possess durable franchises within expanding industries, which can sustain above-average growth rates over time. The diversified portfolio typically spans around 90 holdings across multiple sectors, with significant concentrations in technology, healthcare, financial services, and consumer-related industries. The fund benchmarks its performance against the Russell Midcap Growth Index, aligning its strategy with that index's focus on innovative, high-growth companies within the U.S. equity market. Designed primarily for institutional investors and available via select financial intermediaries, this share class is suitable for clients seeking exposure to the dynamic mid-cap segment while benefiting from professional active management. The fund is managed by American Century Investments, a firm known for its disciplined, research-driven approach to growth investing.

• Fund Family: American Century Investments
• Category: Mid-Cap Growth
• Performance Rating: Average
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: ATHYX
• Share Class: Y Class
• Index: Russell MidCap Growth TR

Performance

ATHYX had a total return of -1.78% in the past year, including dividends. Since the fund's inception, the average annual return has been 11.50%.

Equivalent Funds

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

Symbol	Provider	Name	Expense Ratio
VMGRX	Vanguard	Vanguard Mid-Cap Growth Fund Investor Shares	0.34%
FMDGX	Fidelity	Fidelity Mid Cap Growth 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
ATHDX	R6 Class	0.65%
ATHIX	I Class	0.80%
ATHGX	R5 Class	0.80%
TWHIX	Investor Class	1.00%

Top 10 Holdings

25.55% of assets

Name	Symbol	Weight
Snowflake Inc.	SNOW	3.26%
Datadog, Inc.	DDOG	3.22%
Cloudflare, Inc.	NET	2.90%
State Street Bank & Trust Co 3 Repo - 01jul26	n/a	2.59%
Alnylam Pharmaceuticals, Inc.	ALNY	2.39%
Howmet Aerospace Inc.	HWM	2.38%
Comfort Systems USA, Inc.	FIX	2.32%
Hilton Worldwide Holdings Inc.	HLT	2.29%
Rocket Lab Corporation	RKLB	2.15%
Astera Labs, Inc.	ALAB	2.04%

Dividend History

Ex-Dividend	Amount	Pay Date
Dec 16, 2025	$4.6004	Dec 16, 2025
Dec 17, 2024	$3.7043	Dec 17, 2024
Dec 19, 2023	$0.1705	Dec 19, 2023
Mar 22, 2022	$0.1797	Mar 22, 2022
Dec 7, 2021	$3.078	Dec 7, 2021
Dec 8, 2020	$3.5469	Dec 8, 2020

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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