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Side-by-side financial comparison of AFFILIATED MANAGERS GROUP, INC. (AMG) and STAR GROUP, L.P. (SGU). Click either name above to swap in a different company.

AFFILIATED MANAGERS GROUP, INC. is the larger business by last-quarter revenue ($556.6M vs $539.3M, roughly 1.0× STAR GROUP, L.P.). AFFILIATED MANAGERS GROUP, INC. runs the higher net margin — 62.4% vs 6.6%, a 55.8% gap on every dollar of revenue. On growth, STAR GROUP, L.P. posted the faster year-over-year revenue change (10.5% vs 6.2%). AFFILIATED MANAGERS GROUP, INC. produced more free cash flow last quarter ($254.5M vs $-59.7M).

Affiliated Managers Group, Inc. (AMG) is an American financial services firm founded in 1993 and headquartered in West Palm Beach, Florida. The company's stock trades on the New York Stock Exchange under the symbol AMG, and is listed on the S&P 400 for mid-size American firms.

Lone Star Funds, legal name of main entity Lone Star Global Acquisitions, Ltd. is a global private equity firm that invests in corporate equity, real estate, credit, and other financial assets. The founder of Lone Star established its first fund in 1995 and Lone Star has to date organized 25 private equity funds with total capital commitments since inception of over $95 billion. Lone Star's investors include corporate and public pension funds, sovereign wealth funds, university endowments, fo...

AMG vs SGU — Head-to-Head

Bigger by revenue
AMG
AMG
1.0× larger
AMG
$556.6M
$539.3M
SGU
Growing faster (revenue YoY)
SGU
SGU
+4.3% gap
SGU
10.5%
6.2%
AMG
Higher net margin
AMG
AMG
55.8% more per $
AMG
62.4%
6.6%
SGU
More free cash flow
AMG
AMG
$314.2M more FCF
AMG
$254.5M
$-59.7M
SGU

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AMG
AMG
SGU
SGU
Revenue
$556.6M
$539.3M
Net Profit
$347.5M
$35.8M
Gross Margin
Operating Margin
94.4%
10.1%
Net Margin
62.4%
6.6%
Revenue YoY
6.2%
10.5%
Net Profit YoY
114.2%
8.8%
EPS (diluted)
$10.87

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AMG
AMG
SGU
SGU
Q4 25
$556.6M
$539.3M
Q3 25
$528.0M
Q2 25
$493.2M
Q1 25
$496.6M
Q4 24
$524.3M
Q3 24
$516.4M
Q2 24
$500.3M
Q1 24
$499.9M
Net Profit
AMG
AMG
SGU
SGU
Q4 25
$347.5M
$35.8M
Q3 25
$212.4M
Q2 25
$84.3M
Q1 25
$72.4M
Q4 24
$162.2M
Q3 24
$123.6M
Q2 24
$76.0M
Q1 24
$149.8M
Operating Margin
AMG
AMG
SGU
SGU
Q4 25
94.4%
10.1%
Q3 25
68.7%
Q2 25
34.8%
Q1 25
25.5%
Q4 24
52.2%
Q3 24
42.0%
Q2 24
35.6%
Q1 24
50.8%
Net Margin
AMG
AMG
SGU
SGU
Q4 25
62.4%
6.6%
Q3 25
40.2%
Q2 25
17.1%
Q1 25
14.6%
Q4 24
30.9%
Q3 24
23.9%
Q2 24
15.2%
Q1 24
30.0%
EPS (diluted)
AMG
AMG
SGU
SGU
Q4 25
$10.87
Q3 25
$6.87
Q2 25
$2.80
Q1 25
$2.20
Q4 24
$4.95
Q3 24
$3.78
Q2 24
$2.26
Q1 24
$4.14

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AMG
AMG
SGU
SGU
Cash + ST InvestmentsLiquidity on hand
$586.0M
$19.9M
Total DebtLower is stronger
$2.7B
$254.8M
Stockholders' EquityBook value
$3.2B
Total Assets
$9.2B
$1.1B
Debt / EquityLower = less leverage
0.83×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AMG
AMG
SGU
SGU
Q4 25
$586.0M
$19.9M
Q3 25
$476.1M
Q2 25
$361.0M
Q1 25
$816.5M
Q4 24
$950.0M
Q3 24
$1.0B
Q2 24
$865.5M
Q1 24
$793.4M
Total Debt
AMG
AMG
SGU
SGU
Q4 25
$2.7B
$254.8M
Q3 25
$2.4B
Q2 25
$2.6B
Q1 25
$2.6B
Q4 24
$2.6B
Q3 24
$2.6B
Q2 24
$2.5B
Q1 24
$2.5B
Stockholders' Equity
AMG
AMG
SGU
SGU
Q4 25
$3.2B
Q3 25
$3.3B
Q2 25
$3.2B
Q1 25
$3.2B
Q4 24
$3.3B
Q3 24
$3.3B
Q2 24
$3.3B
Q1 24
$3.6B
Total Assets
AMG
AMG
SGU
SGU
Q4 25
$9.2B
$1.1B
Q3 25
$8.9B
Q2 25
$8.8B
Q1 25
$8.7B
Q4 24
$8.8B
Q3 24
$8.9B
Q2 24
$8.8B
Q1 24
$9.0B
Debt / Equity
AMG
AMG
SGU
SGU
Q4 25
0.83×
Q3 25
0.71×
Q2 25
0.81×
Q1 25
0.82×
Q4 24
0.78×
Q3 24
0.79×
Q2 24
0.76×
Q1 24
0.70×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AMG
AMG
SGU
SGU
Operating Cash FlowLast quarter
$256.4M
$-55.2M
Free Cash FlowOCF − Capex
$254.5M
$-59.7M
FCF MarginFCF / Revenue
45.7%
-11.1%
Capex IntensityCapex / Revenue
0.3%
0.8%
Cash ConversionOCF / Net Profit
0.74×
-1.54×
TTM Free Cash FlowTrailing 4 quarters
$967.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AMG
AMG
SGU
SGU
Q4 25
$256.4M
$-55.2M
Q3 25
$277.1M
Q2 25
$230.8M
Q1 25
$208.9M
Q4 24
$212.5M
Q3 24
$265.2M
Q2 24
$245.2M
Q1 24
$209.2M
Free Cash Flow
AMG
AMG
SGU
SGU
Q4 25
$254.5M
$-59.7M
Q3 25
$275.9M
Q2 25
$229.4M
Q1 25
$207.3M
Q4 24
$211.4M
Q3 24
$264.5M
Q2 24
$244.6M
Q1 24
$208.2M
FCF Margin
AMG
AMG
SGU
SGU
Q4 25
45.7%
-11.1%
Q3 25
52.3%
Q2 25
46.5%
Q1 25
41.7%
Q4 24
40.3%
Q3 24
51.2%
Q2 24
48.9%
Q1 24
41.6%
Capex Intensity
AMG
AMG
SGU
SGU
Q4 25
0.3%
0.8%
Q3 25
0.2%
Q2 25
0.3%
Q1 25
0.3%
Q4 24
0.2%
Q3 24
0.1%
Q2 24
0.1%
Q1 24
0.2%
Cash Conversion
AMG
AMG
SGU
SGU
Q4 25
0.74×
-1.54×
Q3 25
1.30×
Q2 25
2.74×
Q1 25
2.89×
Q4 24
1.31×
Q3 24
2.15×
Q2 24
3.23×
Q1 24
1.40×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AMG
AMG

Segment breakdown not available.

SGU
SGU

Home Heating Oil And Propane$372.6M69%
Motor Fuel And Other Petroleum Products$75.4M14%
Equipment Installations$39.6M7%
Equipment Maintenance Service Contracts$30.3M6%
Billable Call Services$21.4M4%

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