Expense Ratio History

STMZX expense ratio history

AMG Systematica Trend-Enhanced Markets Fund, Class Z

Fund company
AMG Funds I
Type
Mutual fund

Expense ratio: 4.66%

In basis points
466 basis points
Yearly cost per $10,000
$466
Prospectus dated
1 February 2026, filed with the SEC; rounded to 0.01%
Last change
Raised from 3.07% on 1 February 2026

Fee over time

STMZX expense ratio: 3.07% until 1 Feb 2026, then 4.66%; read at 4.66% on 1 Feb 2026.0.00%2.00%4.00%6.00%8.00%Feb 2025May 2025Aug 2025Nov 2025Feb 20263.07% before4.66% from 1 Feb 2026
STMZX expense ratio: 3.07% until 1 Feb 2026, then 4.66%; read at 4.66% on 1 Feb 2026.0.00%2.00%4.00%6.00%8.00%Feb 2025Jul 2025Dec 20253.07% before4.66% from 1 Feb 2026
Solid line: the fee in effect after each recorded change. Dashed: the fee before it. Dots: prospectuses filed with the SEC and dates we read the fee from a source.

Share classes

The same fund is sold as 3 share classes, each with its own fee. Figures are from each class's latest prospectus in SEC filings, rounded to 0.01%.

TickerShare classFeeAfter waiversProspectus dated
STMZX (this page) Class Z 4.66% 1.12% 1 Feb 2026
STMBX Class N 5.06% 1.52% 1 Feb 2026
STMIX Class I 4.76% 1.22% 1 Feb 2026

Every figure we've recorded

DateFeeWhat happened
1 Feb 2026 4.66% In the prospectusTotal annual fund operating expenses in the prospectus dated 2026-02-01 (form 485BPOS), from SEC bulk data, which rounds to 0.01%Source: SEC EDGAR filing, form 485BPOS
1 Feb 2026 4.66% Raised from 3.07% to 4.66%Prospectus date; the new figure appears in this filingSource: Prospectus (form 485BPOS) filed with the SEC on 2026-01-28
19 Feb 2025 3.07% In the prospectusTotal annual fund operating expenses in the prospectus dated 2025-02-19 (form 485BPOS), from SEC bulk data, which rounds to 0.01%Source: SEC EDGAR filing, form 485BPOS

What this fee costs

Change the amount, years or return. The estimate keeps the fee at 4.66% and the return steady each year, the same assumptions as the cost example in a fund's prospectus.

$4,825 in fees over 10 years

After fees, $10,000 grows to $10,226.

Fees paid on $10,000 at 5% a year
AfterFees paid
1 year$478
3 years$1,436
5 years$2,399
10 years$4,825

How we read this figure

The figure is the total annual fund operating expenses line of the fee table in the fund's prospectus, as tagged in the fund company's filing with the SEC. The SEC publishes these figures rounded to four decimal places, so 0.015% appears as 0.02%. The fund company's own page may show a more precise number.

SEC filings give 2 prospectuses for this share class since 2025. Each one is listed above with a link to the filing.

How we read fees

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