The Filing Desk

Affiliated Managers Group vs SEI Investments

Affiliated Managers Group AMG · SEI Investments SEIC · Asset Management & Custody Banks

SEI Investments reported revenue of $2.3 billion in fiscal 2025, about the same as Affiliated Managers Group's $2.1 billion in fiscal 2025. Affiliated Managers Group's revenue grew 1.6% in its latest year, and SEI Investments' grew 8.1%. Free cash flow was $967 million at Affiliated Managers Group and $585 million at SEI Investments.

Side by side

Affiliated Managers GroupSEI Investments
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$2.1B$2.3B
Revenue growth1.6%8.1%
Revenue growth a year, last 5 years0.5%6.4%
Gross margin—35.2%
Operating margin—27.3%
Net margin34.5%31.1%
Free cash flow$967M$585M
Free cash flow margin46.6%25.5%
Return on capital16.5%—
Net debt to EBITDA——
Dividends and buybacks$707M$752M
Change in diluted share count−8.6%−3.5%
Last close$390.97$103.34
P/E at the last close13.7×18.0×
Insider trades, last 12 monthsbought $687,405, sold $10.2 millionsold $50.1 million
Piotroski F-score——
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.

Ten years

Revenue
US$ billions, fiscal years
Affiliated Managers GroupSEI Investments
Operating margin
Percent of revenue
Affiliated Managers GroupSEI Investments
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
Affiliated Managers GroupSEI Investments

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Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the Affiliated Managers Group and SEI Investments pages.