#1
Sell Discipline
"The hardest part of investing isn't buying at the bottom — it's selling when things are going well and prices exceed intrinsic value."
Selling well requires discipline when things look good.
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Howard Marks📌 Selling & Review
Howard Marks's Selling & Review Rules
These are 3 Selling & Review principles distilled from Howard Marks's writing and public remarks. Use them as a decision checkpoint: translate each rule into a yes/no test, write what evidence would change your mind, and set a review date before you act. When a rule feels vague, open the full principle page and capture the driver you can verify (cash flows, leverage, incentives, competitive edge). This is educational, not investment advice—double-check primary sources and fit every rule to your time horizon, risk budget, and constraints.
matrix.rulesQuickChecklistTitle
- Clarify your decision: time horizon, position size, and what would change your mind.
- Choose 3–5 principles from this Selling & Review set and write each as a yes/no check.
- Define 2–3 disconfirming signals (invalidation triggers) before you act.
- Record the inputs you used (numbers, sources, assumptions) so you can audit later.
3 principles·Selling & Review
3 Key Selling & Review Principles
#2
Review Past Decisions
"To improve as an investor, you must honestly review your past decisions. Understanding your mistakes is the surest path to better outcomes."
Honest self-review drives investment improvement.
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Knowing When to Exit
"The key to selling is recognizing when the risk-reward has become unfavorable. When the potential downside exceeds the upside, it's time to move on."
Exit when risk-reward turns unfavorable.
Read Full Analysis →How to apply Howard Marks's Selling & Review principles
Use this page as a workflow, not a collection of quotes. Pick 3–5 principles, translate each into a concrete check, and review your decisions on a fixed cadence. These are educational guardrails—always verify facts and match them to your own constraints.
- Clarify your decision: time horizon, position size, and what would change your mind.
- Choose 3–5 principles from this Selling & Review set and write each as a yes/no check.
- Define 2–3 disconfirming signals (invalidation triggers) before you act.
- Record the inputs you used (numbers, sources, assumptions) so you can audit later.
- Run the checklist when you feel urgency (FOMO, panic) and delay action if you cannot answer.
- Review outcomes on your cadence: what you followed, what you ignored, and what to adjust next cycle.
Boundaries and common misreads
- Don’t treat a principle as a buy/sell signal—convert it into evidence you can verify.
- Avoid “name-dropping” Howard Marks: if you can’t explain the reasoning, you can’t borrow the rule.
- If the situation is outside your circle of competence, the right move is often to pass.
- Separate risk from uncertainty: write what could go wrong and what would confirm it.
- If two principles conflict, slow down and document the trade-off instead of forcing certainty.
Rehearse a scenario decision → ·Run a weekly toolkit → ·Browse all principles →
About Howard Marks
These memos cover market cycles, risk management, investor psychology, and the nature of investment returns. His investment philosophy emphasizes second-level thinking – going beyond surface analysis to consider how other investors are thinking.
Frequently Asked Questions
What are Howard Marks's key selling & review principles?
Howard Marks has 3 key principles on selling & review. The most important one is "Sell Discipline" — The hardest part of investing isn't buying at the bottom — it's selling when things are going well and prices exceed intrinsic value.
How does Howard Marks apply selling & review in practice?
Howard Marks applies selling & review through several key principles including "Sell Discipline" and "Review Past Decisions". These principles guide practical investment decisions and have been tested across decades of market cycles.
What makes Howard Marks's approach to selling & review unique?
Howard Marks's approach to selling & review is distinguished by a focus on long-term thinking and fundamental analysis. With 3 specific principles in this area, Howard Marks provides a comprehensive framework that investors at any level can study and apply to improve their decision-making.
How do I validate Howard Marks's Selling & Review rules without blindly copying them?
Treat each principle as a hypothesis. Write the evidence you would need, collect it from primary sources when possible (filings, letters, transcripts), and note what would invalidate the conclusion. If you can’t define inputs and triggers, you’re not applying the rule—you’re quoting it.
What’s a practical review cadence for applying Selling & Review principles?
Pick a cadence you can sustain (weekly or monthly) and review process signals first: whether you followed your checklist, respected your boundaries, and documented assumptions. Only then look at outcomes. The goal is fewer low-quality decisions, not perfect prediction.
