Howard Marks: 30 Years of Investment Memos — A Complete Reading Guide

In 1990, Howard Marks sat down to write a memo to clients of the Trust Company of the West. He had no publishing strategy, no distribution plan, and no expectation that anyone outside the firm would read it. Thirty-six years and 160+ memos later, these documents have become required reading for professional investors worldwide.

Warren Buffett has said: "When I see memos from Howard Marks in my mail, they're the first thing I read. I always learn something." That endorsement alone would make the memos significant. But their real value lies in their intellectual consistency — Marks has been refining the same core framework for three decades, and the memos are the live record of that refinement.

This guide maps each era of the memo series and identifies the essential readings from each period.

Why Memos, Not Letters?

Buffett writes to shareholders — people who own a piece of Berkshire Hathaway. Marks writes to clients — institutions and individuals who have entrusted capital to Oaktree. The distinction matters.

Buffett's letters explain what he did and why. Marks' memos explain what he thinks — about risk, about cycles, about the psychology of markets. They are more philosophical, more abstract, and often more applicable to investors who don't manage $900 billion.

The memo format — addressed "Memo to: Oaktree Clients" — gives Marks permission to think out loud. He frequently contradicts himself across memos, updates his views, and flags his own uncertainty. This intellectual honesty is rare in finance.

The Early Memos (1990–1999): Building the Framework

Marks' early memos establish the conceptual foundation that everything else builds on. Three ideas dominate:

1. Risk is not volatility. While academics define risk as standard deviation of returns, Marks insists risk is the probability of permanent loss. This seemingly simple distinction has profound implications for portfolio construction. See Risk in our knowledge base.

2. Second-level thinking. First-level thinking says: "This is a good company, let's buy." Second-level thinking says: "This is a good company, but everyone thinks it's a good company, so the price is too high — let's sell." Marks argues that outperformance requires consistently thinking at the second level.

3. The pendulum. Markets swing between euphoria and depression like a pendulum, spending almost no time at the midpoint. The investor's job is to recognize where the pendulum is and position accordingly.

Essential Early Memos

• First Quarter Performance (1991) — One of the earliest memos, establishing the direct, analytical tone.
• Risk (1996) — The foundational memo on asymmetric risk.

The Crisis Memos (2000–2009): Theory Meets Reality

This is where Marks' framework proves its worth — in real time, under extreme pressure, with billions of dollars at stake.

The Dot-Com Bust (2000–2002): Marks had been warning about technology speculation for years. His memos from this period read like a slow-motion car crash narrated by the only sober person in the room. He deploys capital aggressively into distressed debt while others flee.

The Global Financial Crisis (2007–2009): This is Marks' defining moment. His memos trace the crisis from the first signs of subprime trouble through the Lehman collapse. The key memos:

• Race to the Bottom (2007) — Written before the crisis, Marks identifies deteriorating lending standards and predicts consequences. He notes that the competitive pressure to deploy capital has led to a systematic underpricing of risk.

• The Tide Goes Out (2008) — Written during peak panic. While most investors are frozen, Marks is deploying $6 billion in distressed opportunities. This memo shows second-level thinking in action: when everyone is panicking, the assets they're selling are being offered at prices that more than compensate for the risk.

See Global Financial Crisis in our knowledge base for the full context.

The Modern Memos (2010–2020): Low Rates and Reaching for Yield

The post-GFC environment posed a different challenge: not how to survive a crash, but how to invest when everything is expensive and interest rates are near zero.

Marks' memos from this period focus on:

The problem of low returns. When safe assets yield nothing, investors are forced to take more risk for the same return. Marks calls this "reaching for yield" and warns repeatedly that it creates hidden fragility in portfolios.

The rise of passive investing. Marks wrote several influential memos on whether index investing distorts markets. His nuanced view: passive investing works well for individual investors but may create systemic risks if it becomes the dominant approach.

Probabilistic thinking. Marks increasingly emphasizes that the future is a probability distribution, not a single outcome. His memos teach investors to think in ranges of possibilities rather than point forecasts.

Essential Modern Memos

• On the Other Hand (2015) — A structured exercise in balanced analysis. Marks lists bullish and bearish arguments side by side, demonstrating how to hold contradictory ideas simultaneously.
• Expert Opinion (2017) — Why forecasting is mostly useless, and what to do instead.

Recent Memos (2021–2026): The Sea Change

Marks' most impactful recent memo is Sea Change (2022) — his argument that the 40-year decline in interest rates has ended, and with it the investment environment that most active managers have ever known.

The implications, as Marks sees them:

• Credit investors can now earn equity-like returns from bonds for the first time in a generation
• The free money that propped up speculative assets (SPACs, crypto, unprofitable tech) is gone
• Investors who relied on falling rates to generate returns must fundamentally rethink their approach

This memo alone generated more discussion than perhaps anything Marks has written since 2008.

The 10 Must-Read Memos

If you can only read ten, start here:

• Dare to Be Great — The case for unconventional investing
• The Most Important Thing — The synthesis memo (later expanded into his book)
• Risk (1996) — The foundational risk framework
• Race to the Bottom — Pre-GFC prescience
• The Tide Goes Out — Real-time crisis deployment
• On the Other Hand — Structured ambivalence as a tool
• Sea Change — The end of easy money
• Expert Opinion — Why forecasts fail
• It's Not Easy — Why investing is harder than it looks
• Something of Value — Value investing in the modern era

All available in full text in our Howard Marks Knowledge Base.

Explore the Full Archive

Our Howard Marks Knowledge Base contains all 161 memos from 1990 to 2026, annotated with cross-references to investment concepts, market eras, and key people.

Chian May 2026