ATHDX — Heritage Fund
Data updated: 2026-06-26
ATHDX — Heritage Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Mid Cap Growth Equity · $5.37B AUM · 0.65% expense ratio · 12.9% 1-yr return. From SEC regulatory filings.
ATHDX Fund Overview
ATHDX — Heritage Fund is a US mutual fund managed by American Century Mutual Funds, Inc., categorised as United States Mid Cap Growth Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: American Century Mutual Funds, Inc.
- Category: United States Mid Cap Growth Equity
- Assets under management: $5.37B
- 1-year return: 12.9%
- Ticker: ATHDX
- SEC CIK: 0000100334
- SEC series ID: S000006206
- Share class ID: C000129042
ATHDX Holdings
Top 10 holdings of Heritage Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Vertiv Holdings Co | 4.69% |
| Hilton Worldwide Holdings Inc | 4.39% |
| Howmet Aerospace Inc | 4.01% |
| Quanta Services Inc | 3.36% |
| Monolithic Power Systems Inc | 3.03% |
| Royal Caribbean Cruises Ltd | 2.71% |
| Cloudflare Inc | 2.70% |
| Alnylam Pharmaceuticals Inc | 2.38% |
| Targa Resources Corp | 2.22% |
| Carvana Co | 1.93% |
ATHDX Portfolio Allocation
Asset-class allocation of Heritage Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 98.2% |
| Cash & Equivalents | 1.9% |
ATHDX Performance
Total returns for ATHDX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.2% |
| 1 year | 12.9% |
| 3 years (annualised) | 15.0% |
| 5 years (annualised) | 4.3% |
ATHDX Risk Information
Risk metrics for ATHDX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 15.3%
ATHDX Costs and Fees
ATHDX costs about $65 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.65%
- Gross expense ratio: 0.65%
- Portfolio turnover: 62%
- Brokerage commissions: 2.48 bps of average net assets (SEC N-CEN)
ATHDX Cashflows
Over the 12 months to 2026-04, Heritage Fund had net inflows of $55.27M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | −$59.46M |
| 2026-03 | −$127.66M |
| 2026-02 | −$50.29M |
| 2026-01 | −$48.04M |
| 2025-12 | $799.59M |
| 2025-11 | −$26.24M |
ATHDX Debt Constituents
No individual debt constituents are reported in Heritage Fund's latest SEC N-PORT filing.
ATHDX Prospectus and SEC Filings
Official Heritage Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Mid Cap Growth Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.