Sounion Capital Management
Seeking return with a disciplined regard for risk
We work with qualified investors who value discipline, patience, and a clearly defined process.
About
Sounion Capital Management started trading in 2014 with a Separately Managed Account. In 2023, we launched our commingled fund that was reworked into a Cayman master-feeder in 2025.
Sounion's investment objective is to seek to achieve superior risk-adjusted total returns by investing primarily in public and private non-investment grade and unrated debt securities.
Strategy
At its core, our approach is about finding situations where price and value have become disconnected. We focus on debt securities where our assessment of an issuer's earnings potential and underlying asset value suggests the market has got the price wrong. That can create opportunities on both sides — buying securities we believe are undervalued and, selectively, shorting those that look overvalued or where fundamentals are deteriorating.
Those opportunities change as the credit cycle evolves, so we actively adjust the portfolio to reflect where we see the best risk-adjusted returns. We are particularly interested in periods when market sentiment becomes stretched and prices move away from fundamentals.
Ultimately, we aim to generate returns in two ways: as prices move back toward intrinsic value, and through the income and repayments we receive while holding a position. Throughout, capital preservation is central — reflected in how we size positions, diversify the portfolio and concentrate capital in opportunities where we have the highest conviction.
A team with deep experience
At Sounion, you get a first class team with the experience and pedigree of large and successful firms.
Pak Lui
Founder, CIO and PM
Pak has 25 years experience in long/short credit in fund management and markets. His product expertise spans corporate bonds and credit derivatives. Previously at BlueMountain Capital where he was PM for the European Fundamental Strategy. Prior to that he was co-head of NA HY Credit Trading at Deutsche Bank and a CDS market maker at JPMorgan. BA in Economics, University of Virginia.
Ed Zee
PM, Risk & Trading Systems
Ed has 25 years experience predominantly in fund management. His product experience spans corporate bonds, credit indexes, credit derivatives, equities and equity derivatives. Previously PM and Partner at Observatory Capital and at Oppenheimer where he covered emerging markets. Masters in Finance from London Business School.
Mark Longtin
Risk Manager
Mark has 33 years experience in various fixed income roles. His product experience spans USD and EMEA interest rate derivatives and counterparty credit risk. Previously MD at UBS and Deutsche Bank where he ran the EMEA and IR Exotics desks respectively in London, and Merrill Lynch in New York before that. Bachelor of Science in Mathematics and Economics; Master of Science; all from MIT.
Damien Lui
Research
Damien has 24 years experience mainly in funds management. His product expertise spans leveraged loans, corporate bonds and venture capital. He brings access to an expert network. Currently a Partner of Rubix Ventures. Previously at 3i plc where he covered leverage loan portfolios. Attained his CFA designation in 2004; Bachelor of Commerce and Bachelor of Science from Melbourne University.
Advisory and operational support
Suzanne Lui
General Counsel and Compliance
Suzanne has 29 years experience as a corporate finance lawyer in New York and London. She is responsible for legal matters, as well as the compliance and anti-money laundering officer. Previously she was on the legal team at PGIM Private Capital and Milbank Tweed, both in New York. Bachelor of Science in Finance and Juris Doctor, University of Virginia.
Robert Duggan
Independent Cayman Director
Robert has over 20 years experience as a corporate finance lawyer in the Cayman Islands, Hong Kong and London. At Alphataur, he serves as an independent director for over 20 mutual and hedge funds ranging from start ups to established large funds. An expert in Cayman Islands regulatory matters and corporate governance. He was previously a Managing Partner at Mourant and a partner at Walkers. Business School at University of Edinburgh, College of Law in York.
