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  1. The Memo by Howard Marks
  2. Cockroaches in the Coal Mine
Cockroaches in the Coal Mine

Cockroaches in the Coal Mine

The Memo by Howard Marks · Nov 6, 2025

Howard Marks argues recent credit defaults are not systemic failures, but a predictable outcome of cyclical investor complacency. Prudence is key.

The Worst Loans Are Made in the Best of Times, a Key Banking Adage

The most imprudent lending decisions occur during economic booms. Widespread optimism, complacency, and fear of missing out cause investors to lower their standards and overlook risks, sowing the seeds for future failures that are only revealed in a downturn.

Cockroaches in the Coal Mine thumbnail

Cockroaches in the Coal Mine

The Memo by Howard Marks·3 months ago

Credit Defaults Are Systematic Behavioral Patterns, Not Systemic Flaws in Market Plumbing

Recent credit failures and frauds are not 'systemic' risks that threaten the entire financial system's structure. Instead, they are 'systematic'—a regularly recurring behavioral phenomenon. Good times predictably lead to imprudent lending, creating clusters of defaults. The problem is human behavior, not a fundamental flaw in the market itself.

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Cockroaches in the Coal Mine

The Memo by Howard Marks·3 months ago

Economist John Kenneth Galbraith's 'Bezel' Explains How Boom Times Inflate Phantom Wealth from Fraud

The 'bezel' is the inventory of hidden, fraudulent wealth that builds up during good economic times. Investor overconfidence, plentiful capital, and lax due diligence create the perfect environment for financial scams to flourish, with this phantom wealth only being discovered during a downturn.

Cockroaches in the Coal Mine thumbnail

Cockroaches in the Coal Mine

The Memo by Howard Marks·3 months ago

Superior Credit Analysis Requires Assembling a 'Mosaic' of Inferences, Not Finding a Single 'Aha' Moment

Identifying flawed investments, especially in opaque markets like private credit, is rarely about one decisive discovery. It involves assembling a 'mosaic' from many small pieces of information and red flags. This gradual build-up of evidence is what allows for an early, profitable exit before negatives become obvious to all.

Cockroaches in the Coal Mine thumbnail

Cockroaches in the Coal Mine

The Memo by Howard Marks·3 months ago

Extreme Swings in Investor Psychology, Not Fundamentals, Drive Market Volatility

The primary driver of market fluctuations is the dramatic shift in attitudes toward risk. In good times, investors become risk-tolerant and chase gains ('Risk is my friend'). In bad times, risk aversion dominates ('Get me out at any price'). This emotional pendulum causes security prices to fluctuate far more than their underlying intrinsic values.

Cockroaches in the Coal Mine thumbnail

Cockroaches in the Coal Mine

The Memo by Howard Marks·3 months ago