This memo focuses on fundamental analysis and understanding the structural components of corporate earnings. Marks argues that top-line growth often masks deteriorating underlying quality and unsustainable capital structures.

Argues that avoiding all risk guarantees subpar returns, and that successful investing requires taking intelligent risks where the potential reward justifies the uncertainty.

Compares the strategies of seeking home runs versus avoiding strikeouts, concluding that for most, a focus on consistency and loss avoidance is superior.

Marks explores the necessity of second-level thinking and contrarianism. He argues that to achieve superior performance, an investor must be willing to look wrong for a period while holding a non-consensus view.

Using sports analogies, Marks emphasizes the importance of defensive investing, avoiding losers, and the role of luck versus skill in achieving long-term success.

Marks discusses second-level thinking, explaining that superior investment results require a more complex and contrarian thought process than the average market participant.

A follow-up to his 2006 memo, Marks argues that achieving superior performance requires the courage to be different and the willingness to look wrong.

Marks explores the significant role of randomness and luck in investment outcomes, cautioning against attributing all success to skill or foresight.

Provides a framework for evaluating investment managers, distinguishing between genuine skill and luck in historical performance records.

Achieving greatness requires non-consensus behavior and the courage to be lonely, as benchmark-hugging ensures only average results at best.

Marks explains the pitfalls of relying solely on Internal Rate of Return, advocating for a focus on total capital appreciation and realized cash returns.

This memo explores the relationship between return targets and risk, warning that seeking high absolute returns often leads to unrecognized risk exposure.

Reflecting on Oaktree's first decade, Marks emphasizes the importance of a consistent investment philosophy centered on risk control. He argues that avoiding losers is more important than finding winners for long-term success.

Marks addresses the responsibilities of fiduciaries and investment committees. He argues that stewards of capital must focus on long-term goals and resist the pressure to follow short-term market trends or peer performance.

Marks examines the explosion of the hedge fund industry, warning that increased competition and massive capital inflows will lead to lower returns. He questions the sustainability of high fees in an increasingly crowded market.

Marks discusses the conflict of interest between investment managers and their clients. He argues that many managers prioritize asset gathering and fee generation over delivering superior risk-adjusted returns for their investors.

Marks critiques the mutual fund industry for its focus on relative performance and closet indexing. He argues that true value is added through idiosyncratic risk-taking and a willingness to be different from the crowd.

An exploration of the mechanics of investment performance, arguing that superior returns are generated by buying assets at prices significantly below their intrinsic value.

This memo explores the definitions of alpha and beta, arguing that true investment skill is the ability to generate superior returns without commensurate risk.

Marks discusses the importance of consistency and risk control over swinging for the fences. He advocates for a 'tennis-like' approach where avoiding errors is more important than hitting winners.

Marks analyzes the record-breaking recovery of high-yield bonds in early 1991, illustrating how extreme market pessimism creates significant buying opportunities. He argues that disciplined credit selection and a long-term perspective allow investors to capitalize on the market's tendency to overreact to negative news.

Marks argues that superior long-term performance is best achieved through consistency and the avoidance of losers rather than the pursuit of occasional winners. He emphasizes that a defensive approach minimizes errors, leading to outperformance over full market cycles.