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Name

As of 06/01/2026

Price

Aum/Mkt Cap

YIELD

Annualized forward dividend yield. Multiplies the most recent dividend payout amount by its frequency and divides by the previous close price.

Exp Ratio

Expense ratio is the fund’s total annual operating expenses, including management fees, distribution fees, and other expenses, expressed as a percentage of average net assets.

Watchlist

AMG Frontier Small Cap Growth Fund

MSSYX | Fund

$12.34

$98.2 M

1.55%

$0.19

1.10%

Vitals

YTD Return

21.5%

1 yr return

50.3%

3 Yr Avg Return

17.5%

5 Yr Avg Return

7.9%

Net Assets

$98.2 M

Holdings in Top 10

27.4%

52 WEEK LOW AND HIGH

$12.4
N/A
N/A

Expenses

OPERATING FEES

Expense Ratio 1.10%

SALES FEES

Front Load N/A

Deferred Load N/A

TRADING FEES

Turnover 217.00%

Redemption Fee N/A

Min Investment

Standard (Taxable)

$5,000,000

IRA

$50,000

Fund Classification

Fund Type

Open End Mutual Fund

Name

As of 06/01/2026

Price

Aum/Mkt Cap

YIELD

Annualized forward dividend yield. Multiplies the most recent dividend payout amount by its frequency and divides by the previous close price.

Exp Ratio

Expense ratio is the fund’s total annual operating expenses, including management fees, distribution fees, and other expenses, expressed as a percentage of average net assets.

Watchlist

AMG Frontier Small Cap Growth Fund

MSSYX | Fund

$12.34

$98.2 M

1.55%

$0.19

1.10%

MSSYX - Profile

Distributions

  • YTD Total Return 21.5%
  • 3 Yr Annualized Total Return 17.5%
  • 5 Yr Annualized Total Return 7.9%
  • Capital Gain Distribution Frequency Annually
  • Net Income Ratio -0.58%
DIVIDENDS
  • Dividend Yield 1.5%
  • Dividend Distribution Frequency Annual

Fund Details

  • Legal Name
    AMG Frontier Small Cap Growth Fund
  • Fund Family Name
    AMGFUNDSGR
  • Inception Date
    Jan 04, 2010
  • Shares Outstanding
    N/A
  • Share Class
    Z
  • Currency
    USD
  • Domiciled Country
    US
  • Manager
    G. Novak

Fund Description

Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in stocks of U.S. small-capitalization companies. Small-capitalization companies are those with a market capitalization, at the time of purchase, within the range of capitalizations of companies in the Russell 2000® Index, the S&P SmallCap 600 Index, or the Dow Jones U.S. Small Cap Total Stock Market Index. As of April 30, 2025, the date of the latest reconstitution of the Russell 2000® Index (implemented by the Index June 27, 2025), the range of market capitalizations was $119.4 million to $7.4 billion. As of December 31, 2025, the range of market capitalizations of the Dow Jones U.S. Small-Cap Total Stock Market Index was $28.23 million to $34.789 billion. As of December 31, 2025, the range of market capitalizations of the S&P SmallCap 600 Index was $310.25 million to $9.219billion. These capitalization ranges will change over time. The Fund may continue to hold securities of a portfolio company that subsequently drops below or outgrows the capitalization range. Because of this, the Fund may have less than 80% of its net assets in stocks of U.S. small-capitalization companies at any given time.
Frontier Capital Management Co., LLC (“Frontier” or the “Subadviser”) utilizes and draws support from a team of investment professionals to identify opportunities and conduct fundamental research. Through fundamental bottom-up research Frontier seeks long-term capital appreciation by investing in small-capitalization companies that it believes have above-average earnings growth potential and are available at reasonable valuations.
Read More

MSSYX - Performance

Return Ranking - Trailing

Period MSSYX Return Category Return Low Category Return High Rank in Category (%)
YTD 21.5% -21.0% 75.2% 14.00%
1 Yr 50.3% -22.1% 123.6% 13.60%
3 Yr 17.5%* -5.4% 37.8% 34.60%
5 Yr 7.9%* -8.3% 38.7% 15.85%
10 Yr 15.7%* 4.4% 26.8% 7.73%

* Annualized

Return Ranking - Calendar

Period MSSYX Return Category Return Low Category Return High Rank in Category (%)
2025 7.9% -58.0% 42.0% 28.20%
2024 2.5% -63.4% 62.9% 85.00%
2023 22.2% -20.5% 54.6% 9.04%
2022 -21.4% -82.1% 32.2% 7.91%
2021 -18.8% -90.6% 300.1% 81.02%

Total Return Ranking - Trailing

Period MSSYX Return Category Return Low Category Return High Rank in Category (%)
YTD 21.5% -21.0% 75.2% 14.00%
1 Yr 50.3% -22.1% 123.6% 13.60%
3 Yr 17.5%* -5.4% 37.8% 34.60%
5 Yr 7.9%* -8.3% 38.7% 15.85%
10 Yr 15.7%* 4.4% 26.8% 7.73%

* Annualized

Total Return Ranking - Calendar

Period MSSYX Return Category Return Low Category Return High Rank in Category (%)
2025 12.4% -23.5% 42.0% 23.00%
2024 10.9% -3.8% 68.8% 72.20%
2023 23.6% -19.0% 54.6% 6.43%
2022 -21.4% -59.9% 32.2% 13.59%
2021 15.2% -22.7% 411.9% 28.57%

NAV & Total Return History

MSSYX - Holdings

Concentration Analysis

MSSYX Category Low Category High MSSYX % Rank
Net Assets 98.2 M 4.59 M 42.8 B 88.60%
Number of Holdings 123 7 1223 29.00%
Net Assets in Top 10 22.7 M 393 K 3.7 B 90.60%
Weighting of Top 10 27.39% 9.3% 100.0% 30.66%

Top 10 Holdings

  1. Amentum Holdings Inc 3.61%
  2. FTAI Aviation Ltd 3.47%
  3. Alaska Air Group Inc 3.26%
  4. Circle Internet Group Inc 3.04%
  5. Astera Labs Inc 3.03%
  6. Entegris Inc 2.73%
  7. STATE OF WISCONSIN INVESTMENT BOARD 2.34%
  8. Granite Construction Inc 2.15%
  9. Kymera Therapeutics Inc 1.89%
  10. Ultra Clean Holdings Inc 1.86%

Asset Allocation

Weighting Return Low Return High MSSYX % Rank
Stocks 		99.53% 90.58% 106.14% 16.60%
Other 		3.66% -0.55% 6.22% 2.00%
Cash 		0.58% 0.00% 33.61% 83.20%
Preferred Stocks 		0.00% 0.00% 5.64% 32.60%
Convertible Bonds 		0.00% 0.00% 1.57% 24.20%
Bonds 		0.00% 0.00% 4.40% 27.00%

Stock Sector Breakdown

Weighting Return Low Return High MSSYX % Rank
Technology 		32.12% 2.91% 75.51% 11.60%
Healthcare 		22.05% 0.00% 47.90% 53.20%
Industrials 		18.16% 0.00% 36.64% 36.60%
Consumer Cyclical 		13.07% 0.00% 24.04% 42.20%
Financial Services 		4.14% 0.00% 42.95% 78.40%
Energy 		3.80% 0.00% 55.49% 30.60%
Real Estate 		3.18% 0.00% 15.31% 35.00%
Basic Materials 		1.65% 0.00% 9.24% 68.60%
Communication Services 		1.41% 0.00% 15.31% 64.00%
Consumer Defense 		0.41% 0.00% 13.56% 95.60%
Utilities 		0.00% 0.00% 4.68% 45.80%

Stock Geographic Breakdown

Weighting Return Low Return High MSSYX % Rank
US 		99.53% 11.05% 106.14% 15.00%
Non US 		0.00% 0.00% 84.43% 38.80%

MSSYX - Expenses

Operational Fees

MSSYX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Expense Ratio 1.10% 0.05% 7.92% 57.00%
Management Fee 0.70% 0.04% 1.62% 29.06%
12b-1 Fee N/A 0.00% 1.00% N/A
Administrative Fee 0.15% 0.01% 0.40% 71.11%

Sales Fees

MSSYX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Front Load N/A 3.50% 5.75% N/A
Deferred Load N/A 1.00% 5.00% N/A

Trading Fees

MSSYX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Max Redemption Fee N/A 1.00% 2.00% N/A

Related Fees

Turnover provides investors a proxy for the trading fees incurred by mutual fund managers who frequently adjust position allocations. Higher turnover means higher trading fees.

MSSYX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Turnover 217.00% 3.00% 264.00% 99.32%

MSSYX - Distributions

Dividend Yield Analysis

MSSYX Category Low Category High MSSYX % Rank
Dividend Yield 1.55% 0.00% 6.91% 5.00%

Dividend Distribution Analysis

MSSYX Category Low Category High Category Mod
Dividend Distribution Frequency Annual Annual Annual Annual

Net Income Ratio Analysis

MSSYX Category Low Category High MSSYX % Rank
Net Income Ratio -0.58% -2.47% 1.10% 37.85%

Capital Gain Distribution Analysis

MSSYX Category Low Category High Capital Mode
Capital Gain Distribution Frequency Annually Annually Annually Annually

Distributions History

View More +

MSSYX - Fund Manager Analysis

Managers

G. Novak

Start Date

Tenure

Tenure Rank

Sep 14, 2009

12.72

12.7%

Michael Novak joined Frontier in 1998 as a research analyst and in 2010 became co-portfolio manager of the Frontier Small Cap Growth strategy.

James Colgan

Start Date

Tenure

Tenure Rank

Sep 14, 2009

12.72

12.7%

James Colgan joined Frontier in 1998 as a research analyst and in 2010 became co-portfolio manager of the Frontier Small Cap Growth strategy.

Tenure Analysis

Category Low Category High Category Average Category Mode
0.08 30.44 9.26 5.25

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