
In most cases we believe that good companies deliver superior investment performance over time. However, there may also be opportunities for success by investing in companies which benefit from external dynamics. These dynamics might stem from developments in the economy, society, innovation from within the industry itself or from the way which investors value companies.
An additional element is the incorporation of risk management throughout the investment process, consistent with our objective of achieving competitive risk adjusted returns.
We pursue these objectives using a combination of fundamental and quantitative tools.
Active equity portfolios are managed by specialized, focused teams to create dynamic, decisive investment processes within specific mandate areas. Capabilities include:
Active Fixed Income
We recognise that institutions and eligible professional investors have access to a broad array of fixed income strategies. At Northern Trust, our objective is to provide liquid, diversified and value-oriented portfolios to meet the risk/return needs of our clients. As one of the first relative value-based fixed income managers, our approach to fixed income investing offers such distinct advantages as our proven philosophy, our focus on consistency and our experience.
Proven Investment Philosophy
We manage portfolios to emphasise areas where we believe our clients are more than adequately compensated for the risks of moving from benchmark exposures. Our focus is on strong risk management and an intensive credit selection process. The results have been superior risk-adjusted returns.
Focus on Consistency
Our approach to active fixed income management is based upon consistency. We incorporate key elements of a bottom-up strategy, focusing on identifying relative value at the issue and sector level, while closely monitoring and controlling portfolio risk relative to a client-selected benchmark.
Experience
Our experienced team of portfolio managers is supported by our proprietary credit research group, and uses state-of-the-art technology to support quantitative decision making.
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David Blake |

David Blake is a Senior Vice President at Northern Trust in London. David is responsible for the management of international fixed income for Northern Trust. Fund structures under management range from single currency short duration mandates to multicurrency long duration global government bonds – both active and passive.
After graduating in 1999 with a Master of Physics degree from Lancaster University David worked for 3 years as a Gilt repurchase agreement trader and short duration portfolio manager for HMT UK Debt Management Office.
David joined Northern Trust in 2003 as a portfolio manager covering the U.S. dollar and Euro books for securities lending cash re-investment and was appointed senior portfolio manager in 2007.
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Mamadou-Abou Sarr |

Mamadou-Abou Sarr is a Senior Equity Product Specialist at Northern Trust in London. Mamadou focuses primarily on advancing our global index equity product positioning, capabilities, and business in EMEA and APAC regions. Mamadou interacts with our clients and prospects in addition to our product teams to ensure tailored pricing and product development are centred around their interests and is also influential in the production of thought leadership materials.
Mamadou has a key role within Northern Trust’s cross functional responsible investing committee, proactively developing new ideas to ensure that ESG thinking remains central to our business development.
Previously, Mamadou was with HSBC Global Asset Management as a quantitative product specialist responsible for quantitative strategies across all asset classes in EMEA.
Before HSBC, Mamadou worked within the Business Development Service department at Morgan Stanley Investment Management (MSIM) where he was covering portable alpha and liability driven strategies. Prior to this position Mamadou worked as a fund of hedge fund marketing analyst at Amundi Alternative Investments covering Commodity Trading Advisor and Global Macro funds. Mamadou started his career as a FX Sales Trader for Citigroup based in Senegal.
Mamadou received his B.A. in economics from the Universite Jean Monnet and holds a Specialised Master in international project management from the European School of Management (ESCP Europe), Paris. Additionally, he holds the Investment Management Certificate (IMC) and received the Islamic Finance Qualification (IFQ) from the Chartered Institute from Securities & Investment (CISI). Mamadou is an Associate of the Chartered Institute from Securities & Investment (ACSI), a board member of the Islamic Finance Qualification and a member of the CFA UK Institute.
This material is directed to eligible counterparties and professional clients only and should not be relied upon by retail investors. It is issued by Northern Trust Global Investments Limited, authorised and regulated by the Financial Services Authority in the United Kingdom. Registered office: 50 Bank Street, Canary Wharf, London E14 5NT, registered in England 03929218.