Manager Due Diligence · Hedge Funds
An investment edge is an explanation of why a process could earn returns after costs. It needs evidence, boundaries and a reason it might persist.
Turn the claim into a testable proposition
A manager may claim superior research, faster execution, specialized legal knowledge or access to a neglected market. Ask what specific decision this advantage improves. A useful explanation connects information, portfolio action and a measurable result rather than relying on a reputation or broad statement of excellence.
Identify who produces the research, who can challenge it and who controls position size. A process dependent on one person has different continuity risks from a team with documented responsibilities. Neither structure is automatically superior, but the dependency should be explicit.
Examine winners and losers
Choose several investments from the complete record, including failures. Reconstruct the original thesis, information available at the time, expected catalyst and exit decision. Compare contemporaneous records with the explanation offered after the outcome. Hindsight can make an accidental gain look planned.
Suppose a manager earned $8 million, with $6 million explained by broad market exposure and $2 million from stock selection before additional fees. The relevant question is whether that residual contribution is repeatable and sufficient after costs, not whether the total profit sounds impressive.
Test capacity and competition
A strategy that works with $50 million may not work equally well with $5 billion. Position limits, trading depth, opportunity size and financing can constrain capacity. Ask how new capital affects expected returns and whether the manager is willing to close subscriptions.
Write down disconfirming evidence before investing. Examples include a loss of key staff, unexplained style changes or returns increasingly explained by cheap market exposure. A diligence conclusion should distinguish verified facts, reasonable interpretations and unresolved questions. An unresolved issue should not silently become a positive score.
Try it yourself
A manager says performance comes from company research, but most gains occur only when a single sector rises. What evidence would help test the claim?
Show the worked answer
Request sector adjusted attribution, individual position contributions and results in different sector environments. Review losing selections as well as winners and compare decisions with records created before outcomes were known.
Further reading
Educational material, not a recommendation to buy or sell a fund. Numerical examples are hypothetical. Fund terms, investor eligibility and tax treatment vary by product, account and jurisdiction.
