AMRBX — Series One
Data updated: 2026-08-28
AMRBX — Series One. United States Large Cap Growth Industrials Equity · $22.35M AUM · 6.28% expense ratio. Holdings, fees, performance and SEC filings.
AMRBX Fund Overview
AMRBX — Series One is a US mutual fund managed by American Growth Fund INC, categorised as United States Large Cap Growth Industrials 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 Growth Fund INC
- Category: United States Large Cap Growth Industrials Equity
- Assets under management: $22.35M
- 1-year return: 32.5%
- Ticker: AMRBX
- SEC CIK: 0000005138
- SEC series ID: S000012125
- Share class ID: C000033069
AMRBX Holdings
Top 10 holdings of Series One by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Teradyne, Inc. | 18.92% |
| Apple, Inc. | 9.42% |
| Cisco System | 5.93% |
| Caterpillar Inc. | 5.69% |
| Alphabet, Inc. | 5.29% |
| Chemed Corp | 4.76% |
| Microsoft Corporation | 4.74% |
| Nvidia Corp | 4.54% |
| Amgen Inc. | 4.40% |
| Canadian Pacific Kansas City Ltd. | 3.98% |
AMRBX Portfolio Allocation
Asset-class allocation of Series One by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 98.9% |
AMRBX Performance
Total returns for AMRBX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 17.3% |
| 1 year | 32.5% |
| 3 years (annualised) | 17.0% |
| 5 years (annualised) | 6.9% |
AMRBX Risk Information
Risk metrics for AMRBX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 17.1%
AMRBX Costs and Fees
AMRBX costs about $628 per $10,000 invested per year in fund expenses.
- Net expense ratio: 6.28%
- Gross expense ratio: 6.28%
- Brokerage commissions: 0.81 bps of average net assets (SEC N-CEN)
AMRBX Cashflows
Over the 12 months to 2026-07, Series One had net outflows of $2.97M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-07 | −$59.66K |
| 2026-06 | −$237.20K |
| 2026-05 | −$119.13K |
| 2026-04 | −$198.08K |
| 2026-03 | −$137.09K |
| 2026-02 | −$66.27K |
AMRBX Debt Constituents
No individual debt constituents are reported in Series One's latest SEC N-PORT filing.
AMRBX Prospectus and SEC Filings
Official Series One filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2025-11-28
- Prospectus (485BPOS) — filed 2024-12-06
- Prospectus (485BPOS) — filed 2024-05-30
- Portfolio holdings (N-PORT) — filed 2026-08-28
- Portfolio holdings (N-PORT) — filed 2026-05-22
- Portfolio holdings (N-PORT) — filed 2026-03-23
- Annual census (N-CEN) — filed 2025-10-27
- Annual census (N-CEN) — filed 2024-10-21
Related Funds
Other United States Large Cap Growth Industrials 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.