AMG vs SEIC
As of Sep 20, 2026, Affiliated Managers Group (AMG) scores 7.5/10 and SEI Investments (SEIC) 7.9/10 on AlphaStocks' five-model composite, so SEIC scores higher. AMG trades 37% below its model fair value.
AMG
AFFILIATED MANAGERS GROUP, INC.
7.5
Strong Buy
$355.83
SEIC
SEI INVESTMENTS CO
7.9
Strong Buy
$105.25
AMG vs SEIC: Which is the Better Investment?
AFFILIATED MANAGERS GROUP, INC. (AMG) scores 7.5/10 while SEI INVESTMENTS CO (SEIC) scores 7.9/10 on AlphaStocks' composite model. SEI INVESTMENTS CO has the higher composite rating of Strong Buy. On a P/E basis, AFFILIATED MANAGERS GROUP, INC. trades at 16.4x, making it the more attractively priced of the two.
This comparison is algorithmically generated and is not financial advice.
| Metric | AMG | SEIC |
|---|---|---|
| Scores & Fundamentals | ||
| Composite Score | 7.5/10 | 7.9/10▲ |
| Rating | Strong Buy | Strong Buy▲ |
| Price | $355.83 | $105.25 |
| P/E Ratio | 16.4▲ | 18.7 |
| ROE | 21.8% | 29.5%▲ |
| Market Cap | $10B | $13B |
| Fair Value | $560.70 | — |
| Dividend Yield | — | 1.0% |
| Sector Rank | #21 of 265 | #12 of 265▲ |
| Model Verdicts | ||
| Piotroski | Strong | Strong |
| Buffett | Strong | Strong |
| Graham | Neutral | Neutral |
| Lynch | Caution | Neutral▲ |
| Greenblatt | Strong▲ | Attractive |
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AMG vs SEIC: Which Stock Scores Higher?
AFFILIATED MANAGERS GROUP, INC. (AMG) and SEI INVESTMENTS CO (SEIC) are both in the Financials sector. SEIC currently leads with a composite score of 7.9/10 (Strong Buy) compared to AMG's 7.5/10 (Strong Buy).
The AlphaStocks composite score evaluates each stock across four dimensions: Quality (business strength measured by Piotroski F-Score and Buffett quality criteria), Value (discount to intrinsic worth using Graham, Lynch, and Greenblatt models), Momentum (6-month price trend), and Timing (a confirmation signal that requires both value and momentum to align). A higher composite score indicates stronger overall fundamentals combined with favorable market conditions.
This comparison uses the same scoring framework for both companies, ensuring an apples-to-apples evaluation. Scores are recalculated daily after market close using data from SEC filings and market prices. Read the full methodology to understand how each model contributes to the composite score.
Scores are algorithm-generated research tools, not investment recommendations. Past performance does not guarantee future results. Always do your own due diligence. Full disclaimer