MarketAxess (MKTX) vs SEI Investments (SEIC)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 10, 2026.
Summary
SEI Investments (SEIC) has outperformed MarketAxess (MKTX) over the past year, gaining 24.5% versus a loss of 4.4%. Over five years, SEIC leads with a +70.0% price change compared with -59.4% for MKTX. SEI Investments is the larger company by market cap ($12.57 billion vs $5.79 billion), about 2.2 times the size.
On valuation, SEI Investments trades at a lower forward P/E (15.0x vs 18.8x for MarketAxess). MarketAxess offers the higher dividend yield (1.87% vs 0.99%). SEI Investments converts more of its revenue into profit, with a net margin of 31.1% versus 29.1%.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | MKTX | SEIC |
|---|---|---|
| Share price | $164.58 | $104.70 |
| Market cap | $5.79B | $12.57B |
| 1-day change | +0.16% | +1.40% |
| YTD return | -9.20% | +27.65% |
| 1-year return | -4.44% | +24.48% |
| 5-year return | -59.44% | +69.97% |
| P/E ratio (TTM) | 19.45 | 18.47 |
| Forward P/E | 18.81 | 15.02 |
| EPS (TTM) | $8.46 | $5.67 |
| Dividend yield | 1.87% | 0.99% |
| Annual dividend | $3.08 | $1.04 |
| Revenue (latest FY) | $846.27M | $2.30B |
| Revenue growth (YoY) | +3.57% | +8.10% |
| Net income (latest FY) | $246.63M | $715.30M |
| Gross margin | — | 35.18% |
| Operating margin | 40.39% | 27.31% |
| Net margin | 29.14% | 31.14% |
| 52-week high | $195.97 | $112.15 |
| 52-week low | $108.75 | $75.08 |
| Distance from 52-week high | -16.02% | -6.64% |
| Analyst consensus | none | buy |
| Avg. price target upside | -4.00% | +11.87% |
| Average volume | 1.05M | 765.45K |
| Shares outstanding | 35.20M | 120.02M |
| Employees | 863 | 4,997 |
| Sector | Finance | Finance |
| Industry | Investment Bankers/Brokers/Service | Investment Bankers/Brokers/Service |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- SEI Investments is about 2.2 times larger than MarketAxess by market value ($12.57B vs $5.79B).
- SEIC has outperformed MKTX by 28.9 percentage points over the past year.
About MarketAxess
MKTX stock →MarketAxess Holdings Inc., together with its subsidiaries, operates an electronic trading platform for institutional investor and broker-dealer firms in the United States, the United Kingdom, and internationally. The company offers trading technology to access liquidity on its platforms in U.S.
Finance · Investment Bankers/Brokers/Service · 863 employees
About SEI Investments
SEIC stock →SEI Investments Company is a publicly owned asset management holding company. Through its subsidiaries, the firm provides wealth management, retirement and investment solutions, asset management, asset administration, investment processing outsourcing solutions, financial services, and investment advisory services to its clients.
Finance · Investment Bankers/Brokers/Service · 4,997 employees
MKTX vs SEIC FAQ
Which is bigger, MarketAxess or SEI Investments?
SEI Investments (SEIC) is larger, with a market capitalization of $12.57B compared with $5.79B for MarketAxess (MKTX).
Which stock has performed better over the past year, MKTX or SEIC?
SEIC returned +24.48% over the past 12 months, compared with -4.44% for MKTX (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, MKTX or SEIC?
SEIC has the lower trailing P/E at 18.5, versus 19.5 for MKTX. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Which pays a higher dividend, MarketAxess or SEI Investments?
MarketAxess has the higher yield at 1.87%, compared with 0.99% for SEI Investments.
Are MarketAxess and SEI Investments in the same industry?
Yes. Both are classified in the Investment Bankers/Brokers/Service industry within the Finance sector.