MSSYX — AMG Frontier Small Cap Growth Fund
Data updated: 2026-06-24
MSSYX — AMG Frontier Small Cap Growth Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Small Cap Growth Equity · $98.23M AUM · 0.90% expense ratio · 51.4% 1-yr return. From SEC regulatory filings.
MSSYX Fund Overview
MSSYX — AMG Frontier Small Cap Growth Fund is a US mutual fund managed by AMG Funds I, categorised as United States Small 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: AMG Funds I
- Category: United States Small Cap Growth Equity
- Assets under management: $98.23M
- 1-year return: 51.4%
- Ticker: MSSYX
- SEC CIK: 0000882443
- SEC series ID: S000009910
- Share class ID: C000081950
MSSYX Holdings
Top 10 holdings of AMG Frontier Small Cap Growth Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Ftai Aviation Ltd. | 4.06% |
| Applied Optoelectronics, Inc. | 3.17% |
| Alaska Air Group, Inc. | 3.12% |
| Astera Labs, Inc. | 3.04% |
| United Therapeutics Corp. | 2.59% |
| Circle Internet Group, Inc. | 2.36% |
| Granite Construction, Inc. | 2.34% |
| Intuitive Machines, Inc. | 2.24% |
| Jazz Pharmaceuticals PLC | 2.17% |
| Silicon Motion Technology Corp. | 2.17% |
MSSYX Portfolio Allocation
Asset-class allocation of AMG Frontier Small Cap Growth Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.8% |
| Cash & Equivalents | 1.1% |
MSSYX Performance
Total returns for MSSYX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 14.1% |
| 1 year | 51.4% |
| 3 years (annualised) | 18.1% |
| 5 years (annualised) | 6.7% |
MSSYX Risk Information
Risk metrics for MSSYX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 14.1%
MSSYX Costs and Fees
MSSYX costs about $90 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.90%
- Gross expense ratio: 1.10%
- Portfolio turnover: 290%
- Brokerage commissions: 35.11 bps of average net assets (SEC N-CEN)
MSSYX Cashflows
Over the 12 months to 2026-04, AMG Frontier Small Cap Growth Fund had net outflows of $17.27M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | −$4.92M |
| 2026-03 | $577.71K |
| 2026-02 | $12.26M |
| 2026-01 | −$870.53K |
| 2025-12 | $2.20M |
| 2025-11 | −$833.70K |
MSSYX Debt Constituents
No individual debt constituents are reported in AMG Frontier Small Cap Growth Fund's latest SEC N-PORT filing.
MSSYX Prospectus and SEC Filings
Official AMG Frontier Small Cap Growth Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Small 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.