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Decades of evidence show companies with strong fundamentals, sensible valuations and durable trends tend to outperform over time. 

Our investment approach is rooted in that simple idea: buy sound, avoid fragile and stay disciplined.

We rely on evidence, data, and a “margin of safety”. The tools we use are quantitative but the philosophy is unmistakably traditional: 

Invest on rational grounds, avoid unnecessary risks, and stay disciplined.

The source of ‘Alpha’

For over 20 years, factors have explained 73% of alpha1 generated by outperforming global equity funds.

Finds worthwhile companies at reasonable prices.

Focuses on businesses with resilient earnings and robust financial structure.

Recognizes that strengths often persist, and weakness reveals deeper flaws.

1 Source: Barbaneagra, Shang “Optimal Portfolios in the Presence of Predictable Returns”, 2023, SEI Quantitative Investment Management research paper

We do not seek to predict the market. Instead, we apply enduring principles through a modern, evidence-based framework designed to build resilience and reduce fragility. 

While quantitative at its core, our portfolios are overseen by skilled managers who ensure the process operates as intended.

Our portfolios are:

  • Single-focused, yet always multifactor
  • Active and adaptive
  • Integrated and risk-managed

Single-focused, yet always multifactor

Value without sacrificing Quality and Momentum.

Focused on value metrics within context of quality and momentum.

Quality without sacrificing Value and Momentum.

Focused on quality metrics within context of value and momentum.

Momentum without sacrificing Value and Quality.

Focused on momentum metrics within context of value and quality.

Active and adaptive

Our models evolve with changing data and market conditions. We adjust our inputs to reflect these shifts while keeping our process grounded in strategic discipline. We rebalance our portfolios when warranted - free from unnecessary rigidity - but we also avoid trading unless there is a meaningful improvement in expected outcomes.

Example: Adapting stable Value factor composite to Covid-19 recovery

Source: SEI. Factor Weights constitute the live factor weightings utilized in the Stable Value Composite Factor present in SEI portfolios. This is one of many factors present in the strategy – underlying factors, definitions and weightings are subject to change. Additional information available upon request.
Date range: From 31-12-2019 to 31-07-2025

Our portfolio managers oversee and refine inputs when fundamentals shift, or events distort standard metrics

Example: Refining a value metric post stock spinoff

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value metric post stock spinoff

For illustrative purposes only

Integrated and risk managed

Our single-focused portfolios are integrated through a position-optimization process that avoids unnecessary cross-trading, improves liquidity management, and efficiently manages constraints.

We optimize candidate positions against both known and unknown risks, combining quantitative techniques with traditional diversification principles.2

Example of risk management in a Value portfolio:

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Risk Management in a Value portfolio

Traditional

Controlling underweights

Quantitative

Buying “less expensive” to manage risk, informed by:

  • Pre-specified models that measure defined factor risks.
  • Statistical models measuring unspecified risks.

2‘Barbaneagra, Shang “Risk Modelling in Optimized Factor Portfolios”’
Date range: From 30-06-2025 to 30-09-2025

Important information

Please refer to the SGMF Fund Prospectus for the UCITS Fund and the KIID before making an investment decision. Currency fluctuations may cause returns to increase or decrease.

Past performance is not necessarily indicative of future results. There can be no assurance the Fund will achieve its objectives or avoid significant losses.

Please refer to the Fund documents including the Prospectus and Key Investor Information Document (KIID) for more information. The Prospectus and KIID are available from Fund documents in English.

Article 8 funds strive to achieve the investment objective whilst promoting environmental and social characteristics within the meaning of Article 8 of SFDR. The funds provide that the companies in which it invests in, follow good governance practices. These products are based overseas and are not subject to UK sustainable investment labelling and disclosure requirements. For further information in relation to the UK sustainable investment labelling and disclosure requirements, please refer to the following FCA website: Sustainable investment labels and anti‐greenwashing | FCA. Sustainability guidelines may cause a manager to make or avoid certain investment decisions when it may be disadvantageous to do so. This means that these investments may underperform other similar investments that do not consider sustainability guidelines when making investment decisions. There can be no assurance goals will be met. If a product or strategy is subject to certain sustainable investment criteria it may avoid purchasing certain securities when it is otherwise economically advantageous to purchase those securities, or may sell certain securities when it is otherwise economically advantageous to hold those securities. Sustainability is not uniformly defined and scores and ratings may vary across providers.

We integrate ESG considerations directly into our investment process rather than relying on static exclusions. 

Our active ESG risk-pricing model3 dynamically evaluates financially material ESG risks and tilts away from exposures that are not adequately compensated by expected returns. 

This approach enables us to incorporate ESG factors while maintaining the portfolio’s investment objectives. Portfolio managers monitor how ESG inputs interact with our alpha models, managing unintended exposures and ensuring alignment with each fund’s return and risk profile.

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active esg

3 Source: Barbaneagra, Shang, Xu “Not All ESG Risks are Equal”, 2024, SEI Quantitative Investment Management research paper

We are a specialist quantitative investment management team within SEI’s Investment Management Corporation (SIMC), responsible for the research, development, and management of quantitative investment portfolios, operating from offices in London, UK, and Oaks, PA, USA.

The team manages more than USD 30 billion across U.S., global, and emerging-market portfolios through mutual funds, ETFs, and separate accounts.

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Eugene_Barbaneagra.jpg

Eugene Barbaneagra, CFA

Global Head of QiM

Eugene Barbaneagra is the Global Head and the founding member of SEI’s Quantitative Investment Management team. For more than two decades, he has led the development of SEI’s quantitative equity capability, drawing on extensive experience in evaluating best practices in factor research, portfolio construction, and risk management. Since establishing QiM, Eugene has shaped a disciplined, evidence driven investment philosophy grounded in research, risk awareness, and durable return drivers. 
Before joining SEI, Eugene worked in Vanguard’s Investment Research and Analysis group. 

Eugene holds a BSc in Business Administration with concentrations in Finance and Management of Information Systems from Drexel University. He also earned an MSc in Risk Management and Financial Engineering from Imperial College London. He is a CFA charterholder.

Jianan Chen, CFA

Senior Quantitative Analyst

Aris Christofides

Quantitative Developer

Dante D'Orazio, CFA

Portfolio Manager

Med El Kourdi, PhD

Senior Quantitative Analyst

George Filippakopolos

Senior Quantitative Developer

Lan Jiang, PhD

Senior Quantitative Analyst

Alejandra Munoz

Investment Associate

Matthew Perciato

Fund Analyst

Victor Shang, PhD

Senior Quantitative Analyst

George Tyrakis, FIA

Strategy Director

Tianyu Xu, CFA

Quantitative Analyst

Related insights

For more information, contact the team today.



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This is a marketing communication. This webpage is provided by SEI Investments (Europe) Ltd (""SIEL""). SIEL is authorised and regulated by the Financial Conduct Authority. Financial Services Register Firm Reference Number (FRN) 191713. Registered office; 1st Floor, Alphabeta, 14-18 Finsbury Square, London EC2A 1BR. Registered in England and Wales – company number 03765319. This webpage is only for the intended recipient and should not be distributed further. While considerable care has been taken to ensure the information contained within this webpage is accurate and up-to date and complies with relevant legislation and regulations, no warranty is given and no representation is made as to the accuracy or completeness of any information and no liability is accepted for any errors or omissions in such information or any action taken on the basis of this information. The views and opinions in this webpage are of SEI only and are subject to change. They should not be construed as investment advice.

You are visiting this website of your own accord and notwithstanding the notices above, SEI makes no representations or warranties in relation to the reliability, accuracy or completeness of the information including the availability of the Fund in your jurisdiction.

This website is not an offer to sell interests in the Fund and is not soliciting an offer to buy interests in the Fund in any jurisdiction where the offer or sale is not permitted.

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Estimates, trends, targets, forecasts, illustrations or opinions are based on SEI’s subjective opinions only at the date of publication and are subject to change. SEI makes no representation or warranty as to the accuracy of any information contained herein.

Past performance is not necessarily indicative of future results. There can be no assurance the Fund will achieve its objectives or avoid significant losses.

Please refer to the Fund documents including the Prospectus, Key Investor Information Document (KIID) and the PRIIPs KID for more information. The Prospectus, KIID and PRIIPs KID are available from Fund documents | SEI (seic.com) in English